Home / 278,276.64-417,438.27-88,764.18

Finding the Fourth Proportional to 278,276.64, 417,438.27 and 88,764.18

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Solution

The fourth proportional to 278,276.64, 417,438.27 and 88,764.18 is: 133,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,276.64 : 417,438.27 = 88,764.18 : x
  2. Step 2: Convert to fraction form
    278,276.64/417,438.27 = 88,764.18/x
  3. Step 3: Cross multiply
    278,276.64x = 417,438.27 × 88,764.18
  4. Step 4: Simplify right side
    278,276.64x = 37,053,565,737.17
  5. Step 5: Solve for x
    x = 37,053,565,737.17/278,276.64
  6. Step 6: Final answer
    x = 133,153.71

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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.