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Finding the Fourth Proportional to 547.29, 819.45 and 362.43

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Solution

The fourth proportional to 547.29, 819.45 and 362.43 is: 542.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.29 : 819.45 = 362.43 : x
  2. Step 2: Convert to fraction form
    547.29/819.45 = 362.43/x
  3. Step 3: Cross multiply
    547.29x = 819.45 × 362.43
  4. Step 4: Simplify right side
    547.29x = 296,993.26
  5. Step 5: Solve for x
    x = 296,993.26/547.29
  6. Step 6: Final answer
    x = 542.66

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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.