Home / 430.26-593.26-312

Finding the Fourth Proportional to 430.26, 593.26 and 312

Calculator

Solution

The fourth proportional to 430.26, 593.26 and 312 is: 430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.26 : 593.26 = 312 : x
  2. Step 2: Convert to fraction form
    430.26/593.26 = 312/x
  3. Step 3: Cross multiply
    430.26x = 593.26 × 312
  4. Step 4: Simplify right side
    430.26x = 185,097.12
  5. Step 5: Solve for x
    x = 185,097.12/430.26
  6. Step 6: Final answer
    x = 430.20

Related Problems

Find fourth proportional to 215.13, 296.63 and 156
Half scale
Find fourth proportional to 860.52, 1,186.52 and 624
Double scale
Find fourth proportional to 431.26, 594.64 and 313
Similar ratio
Find fourth proportional to 645.39, 889.89 and 468
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.