Home / 445,977.28-615,478.98-252,385.12

Finding the Fourth Proportional to 445,977.28, 615,478.98 and 252,385.12

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Solution

The fourth proportional to 445,977.28, 615,478.98 and 252,385.12 is: 348,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,977.28 : 615,478.98 = 252,385.12 : x
  2. Step 2: Convert to fraction form
    445,977.28/615,478.98 = 252,385.12/x
  3. Step 3: Cross multiply
    445,977.28x = 615,478.98 × 252,385.12
  4. Step 4: Simplify right side
    445,977.28x = 155,337,736,224.78
  5. Step 5: Solve for x
    x = 155,337,736,224.78/445,977.28
  6. Step 6: Final answer
    x = 348,308.63

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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.