Home / 278,294.16-417,474.06-88,688.55

Finding the Fourth Proportional to 278,294.16, 417,474.06 and 88,688.55

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Solution

The fourth proportional to 278,294.16, 417,474.06 and 88,688.55 is: 133,043.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,294.16 : 417,474.06 = 88,688.55 : x
  2. Step 2: Convert to fraction form
    278,294.16/417,474.06 = 88,688.55/x
  3. Step 3: Cross multiply
    278,294.16x = 417,474.06 × 88,688.55
  4. Step 4: Simplify right side
    278,294.16x = 37,025,169,044.01
  5. Step 5: Solve for x
    x = 37,025,169,044.01/278,294.16
  6. Step 6: Final answer
    x = 133,043.28

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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.