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Finding the Fourth Proportional to 410.97, 616.52 and 137.03

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Solution

The fourth proportional to 410.97, 616.52 and 137.03 is: 205.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.97 : 616.52 = 137.03 : x
  2. Step 2: Convert to fraction form
    410.97/616.52 = 137.03/x
  3. Step 3: Cross multiply
    410.97x = 616.52 × 137.03
  4. Step 4: Simplify right side
    410.97x = 84,483.62
  5. Step 5: Solve for x
    x = 84,483.62/410.97
  6. Step 6: Final answer
    x = 205.57

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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.