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Finding the Fourth Proportional to 442,073.48, 663,139.35 and 161,787.56

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Solution

The fourth proportional to 442,073.48, 663,139.35 and 161,787.56 is: 242,692.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,073.48 : 663,139.35 = 161,787.56 : x
  2. Step 2: Convert to fraction form
    442,073.48/663,139.35 = 161,787.56/x
  3. Step 3: Cross multiply
    442,073.48x = 663,139.35 × 161,787.56
  4. Step 4: Simplify right side
    442,073.48x = 107,287,694,060.79
  5. Step 5: Solve for x
    x = 107,287,694,060.79/442,073.48
  6. Step 6: Final answer
    x = 242,692.00

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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.