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Finding the Fourth Proportional to 409.46, 614.28 and 166.01

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Solution

The fourth proportional to 409.46, 614.28 and 166.01 is: 249.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.46 : 614.28 = 166.01 : x
  2. Step 2: Convert to fraction form
    409.46/614.28 = 166.01/x
  3. Step 3: Cross multiply
    409.46x = 614.28 × 166.01
  4. Step 4: Simplify right side
    409.46x = 101,972.72
  5. Step 5: Solve for x
    x = 101,972.72/409.46
  6. Step 6: Final answer
    x = 249.04

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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.