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Finding the Fourth Proportional to 650.92, 898.49 and 385.35

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Solution

The fourth proportional to 650.92, 898.49 and 385.35 is: 531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.92 : 898.49 = 385.35 : x
  2. Step 2: Convert to fraction form
    650.92/898.49 = 385.35/x
  3. Step 3: Cross multiply
    650.92x = 898.49 × 385.35
  4. Step 4: Simplify right side
    650.92x = 346,233.12
  5. Step 5: Solve for x
    x = 346,233.12/650.92
  6. Step 6: Final answer
    x = 531.91

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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.