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Finding the Fourth Proportional to 524.61, 787.11 and 159.42

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Solution

The fourth proportional to 524.61, 787.11 and 159.42 is: 239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.61 : 787.11 = 159.42 : x
  2. Step 2: Convert to fraction form
    524.61/787.11 = 159.42/x
  3. Step 3: Cross multiply
    524.61x = 787.11 × 159.42
  4. Step 4: Simplify right side
    524.61x = 125,481.08
  5. Step 5: Solve for x
    x = 125,481.08/524.61
  6. Step 6: Final answer
    x = 239.19

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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.