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Finding the Fourth Proportional to 614.89, 922.71 and 249.68

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Solution

The fourth proportional to 614.89, 922.71 and 249.68 is: 374.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.89 : 922.71 = 249.68 : x
  2. Step 2: Convert to fraction form
    614.89/922.71 = 249.68/x
  3. Step 3: Cross multiply
    614.89x = 922.71 × 249.68
  4. Step 4: Simplify right side
    614.89x = 230,381.55
  5. Step 5: Solve for x
    x = 230,381.55/614.89
  6. Step 6: Final answer
    x = 374.67

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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.