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Finding the Fourth Proportional to 458,787.60, 688,188.30 and 159,277.70

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Solution

The fourth proportional to 458,787.60, 688,188.30 and 159,277.70 is: 238,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,787.60 : 688,188.30 = 159,277.70 : x
  2. Step 2: Convert to fraction form
    458,787.60/688,188.30 = 159,277.70/x
  3. Step 3: Cross multiply
    458,787.60x = 688,188.30 × 159,277.70
  4. Step 4: Simplify right side
    458,787.60x = 109,613,049,590.91
  5. Step 5: Solve for x
    x = 109,613,049,590.91/458,787.60
  6. Step 6: Final answer
    x = 238,918.95

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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.