Home / 278,331.92-417,440.46-136,031.12

Finding the Fourth Proportional to 278,331.92, 417,440.46 and 136,031.12

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Solution

The fourth proportional to 278,331.92, 417,440.46 and 136,031.12 is: 204,018.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,331.92 : 417,440.46 = 136,031.12 : x
  2. Step 2: Convert to fraction form
    278,331.92/417,440.46 = 136,031.12/x
  3. Step 3: Cross multiply
    278,331.92x = 417,440.46 × 136,031.12
  4. Step 4: Simplify right side
    278,331.92x = 56,784,893,307.12
  5. Step 5: Solve for x
    x = 56,784,893,307.12/278,331.92
  6. Step 6: Final answer
    x = 204,018.62

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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.