Home / 378,432-567,648-153,914.58

Finding the Fourth Proportional to 378,432, 567,648 and 153,914.58

Calculator

Solution

The fourth proportional to 378,432, 567,648 and 153,914.58 is: 230,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,432 : 567,648 = 153,914.58 : x
  2. Step 2: Convert to fraction form
    378,432/567,648 = 153,914.58/x
  3. Step 3: Cross multiply
    378,432x = 567,648 × 153,914.58
  4. Step 4: Simplify right side
    378,432x = 87,369,303,507.84
  5. Step 5: Solve for x
    x = 87,369,303,507.84/378,432
  6. Step 6: Final answer
    x = 230,871.87

Related Problems

Find fourth proportional to 189,216, 283,824 and 76,957.29
Half scale
Find fourth proportional to 756,864, 1,135,296 and 307,829.16
Double scale
Find fourth proportional to 378,433, 567,649.50 and 153,915.58
Similar ratio
Find fourth proportional to 567,648, 851,472 and 230,871.87
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.