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Finding the Fourth Proportional to 614.92, 922.40 and 371.16

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Solution

The fourth proportional to 614.92, 922.40 and 371.16 is: 556.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.92 : 922.40 = 371.16 : x
  2. Step 2: Convert to fraction form
    614.92/922.40 = 371.16/x
  3. Step 3: Cross multiply
    614.92x = 922.40 × 371.16
  4. Step 4: Simplify right side
    614.92x = 342,357.98
  5. Step 5: Solve for x
    x = 342,357.98/614.92
  6. Step 6: Final answer
    x = 556.75

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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.