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Finding the Fourth Proportional to 508.66, 762.03 and 488.50

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Solution

The fourth proportional to 508.66, 762.03 and 488.50 is: 731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.66 : 762.03 = 488.50 : x
  2. Step 2: Convert to fraction form
    508.66/762.03 = 488.50/x
  3. Step 3: Cross multiply
    508.66x = 762.03 × 488.50
  4. Step 4: Simplify right side
    508.66x = 372,251.66
  5. Step 5: Solve for x
    x = 372,251.66/508.66
  6. Step 6: Final answer
    x = 731.83

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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.