Home / 307,215.60-431,346-307,215.60

Finding the Fourth Proportional to 307,215.60, 431,346 and 307,215.60

Calculator

Solution

The fourth proportional to 307,215.60, 431,346 and 307,215.60 is: 431,346

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,215.60 : 431,346 = 307,215.60 : x
  2. Step 2: Convert to fraction form
    307,215.60/431,346 = 307,215.60/x
  3. Step 3: Cross multiply
    307,215.60x = 431,346 × 307,215.60
  4. Step 4: Simplify right side
    307,215.60x = 132,516,220,197.60
  5. Step 5: Solve for x
    x = 132,516,220,197.60/307,215.60
  6. Step 6: Final answer
    x = 431,346

Related Problems

Find fourth proportional to 153,607.80, 215,673 and 153,607.80
Half scale
Find fourth proportional to 614,431.20, 862,692 and 614,431.20
Double scale
Find fourth proportional to 307,216.60, 431,347.40 and 307,216.60
Similar ratio
Find fourth proportional to 460,823.40, 647,019 and 460,823.40
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.