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Finding the Fourth Proportional to 650.89, 898.24 and 385.34

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Solution

The fourth proportional to 650.89, 898.24 and 385.34 is: 531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.89 : 898.24 = 385.34 : x
  2. Step 2: Convert to fraction form
    650.89/898.24 = 385.34/x
  3. Step 3: Cross multiply
    650.89x = 898.24 × 385.34
  4. Step 4: Simplify right side
    650.89x = 346,127.80
  5. Step 5: Solve for x
    x = 346,127.80/650.89
  6. Step 6: Final answer
    x = 531.78

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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.