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Finding the Fourth Proportional to 500.82, 751.27 and 135.61

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Solution

The fourth proportional to 500.82, 751.27 and 135.61 is: 203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.82 : 751.27 = 135.61 : x
  2. Step 2: Convert to fraction form
    500.82/751.27 = 135.61/x
  3. Step 3: Cross multiply
    500.82x = 751.27 × 135.61
  4. Step 4: Simplify right side
    500.82x = 101,875.29
  5. Step 5: Solve for x
    x = 101,875.29/500.82
  6. Step 6: Final answer
    x = 203.42

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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.