Home / 224,639.28-309,991.32-129,124.08

Finding the Fourth Proportional to 224,639.28, 309,991.32 and 129,124.08

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Solution

The fourth proportional to 224,639.28, 309,991.32 and 129,124.08 is: 178,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,639.28 : 309,991.32 = 129,124.08 : x
  2. Step 2: Convert to fraction form
    224,639.28/309,991.32 = 129,124.08/x
  3. Step 3: Cross multiply
    224,639.28x = 309,991.32 × 129,124.08
  4. Step 4: Simplify right side
    224,639.28x = 40,027,344,002.99
  5. Step 5: Solve for x
    x = 40,027,344,002.99/224,639.28
  6. Step 6: Final answer
    x = 178,184.97

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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.