Home / 278,208.29-417,355.88-88,711.13

Finding the Fourth Proportional to 278,208.29, 417,355.88 and 88,711.13

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Solution

The fourth proportional to 278,208.29, 417,355.88 and 88,711.13 is: 133,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,208.29 : 417,355.88 = 88,711.13 : x
  2. Step 2: Convert to fraction form
    278,208.29/417,355.88 = 88,711.13/x
  3. Step 3: Cross multiply
    278,208.29x = 417,355.88 × 88,711.13
  4. Step 4: Simplify right side
    278,208.29x = 37,024,112,326.78
  5. Step 5: Solve for x
    x = 37,024,112,326.78/278,208.29
  6. Step 6: Final answer
    x = 133,080.55

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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.