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Finding the Fourth Proportional to 508.87, 763.25 and 179.76

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Solution

The fourth proportional to 508.87, 763.25 and 179.76 is: 269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.87 : 763.25 = 179.76 : x
  2. Step 2: Convert to fraction form
    508.87/763.25 = 179.76/x
  3. Step 3: Cross multiply
    508.87x = 763.25 × 179.76
  4. Step 4: Simplify right side
    508.87x = 137,201.82
  5. Step 5: Solve for x
    x = 137,201.82/508.87
  6. Step 6: Final answer
    x = 269.62

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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.