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Finding the Fourth Proportional to 534.57, 801.79 and 144.61

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Solution

The fourth proportional to 534.57, 801.79 and 144.61 is: 216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.57 : 801.79 = 144.61 : x
  2. Step 2: Convert to fraction form
    534.57/801.79 = 144.61/x
  3. Step 3: Cross multiply
    534.57x = 801.79 × 144.61
  4. Step 4: Simplify right side
    534.57x = 115,946.85
  5. Step 5: Solve for x
    x = 115,946.85/534.57
  6. Step 6: Final answer
    x = 216.90

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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.