Home / 278,375.40-417,358.64-88,726.59

Finding the Fourth Proportional to 278,375.40, 417,358.64 and 88,726.59

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Solution

The fourth proportional to 278,375.40, 417,358.64 and 88,726.59 is: 133,024.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,375.40 : 417,358.64 = 88,726.59 : x
  2. Step 2: Convert to fraction form
    278,375.40/417,358.64 = 88,726.59/x
  3. Step 3: Cross multiply
    278,375.40x = 417,358.64 × 88,726.59
  4. Step 4: Simplify right side
    278,375.40x = 37,030,808,490.60
  5. Step 5: Solve for x
    x = 37,030,808,490.60/278,375.40
  6. Step 6: Final answer
    x = 133,024.72

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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.