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Finding the Fourth Proportional to 650.93, 898.11 and 385.20

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Solution

The fourth proportional to 650.93, 898.11 and 385.20 is: 531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.93 : 898.11 = 385.20 : x
  2. Step 2: Convert to fraction form
    650.93/898.11 = 385.20/x
  3. Step 3: Cross multiply
    650.93x = 898.11 × 385.20
  4. Step 4: Simplify right side
    650.93x = 345,951.97
  5. Step 5: Solve for x
    x = 345,951.97/650.93
  6. Step 6: Final answer
    x = 531.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.