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Finding the Fourth Proportional to 614.15, 921.08 and 175.39

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Solution

The fourth proportional to 614.15, 921.08 and 175.39 is: 263.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.15 : 921.08 = 175.39 : x
  2. Step 2: Convert to fraction form
    614.15/921.08 = 175.39/x
  3. Step 3: Cross multiply
    614.15x = 921.08 × 175.39
  4. Step 4: Simplify right side
    614.15x = 161,545.70
  5. Step 5: Solve for x
    x = 161,545.70/614.15
  6. Step 6: Final answer
    x = 263.04

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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.