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Finding the Fourth Proportional to 410.13, 615.18 and 166.49

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Solution

The fourth proportional to 410.13, 615.18 and 166.49 is: 249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.13 : 615.18 = 166.49 : x
  2. Step 2: Convert to fraction form
    410.13/615.18 = 166.49/x
  3. Step 3: Cross multiply
    410.13x = 615.18 × 166.49
  4. Step 4: Simplify right side
    410.13x = 102,418.24
  5. Step 5: Solve for x
    x = 102,418.24/410.13
  6. Step 6: Final answer
    x = 249.72

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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.