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Finding the Fourth Proportional to 614.59, 921.85 and 249.62

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Solution

The fourth proportional to 614.59, 921.85 and 249.62 is: 374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.59 : 921.85 = 249.62 : x
  2. Step 2: Convert to fraction form
    614.59/921.85 = 249.62/x
  3. Step 3: Cross multiply
    614.59x = 921.85 × 249.62
  4. Step 4: Simplify right side
    614.59x = 230,106.96
  5. Step 5: Solve for x
    x = 230,106.96/614.59
  6. Step 6: Final answer
    x = 374.41

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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.