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Finding the Fourth Proportional to 543.17, 814.73 and 177.98

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Solution

The fourth proportional to 543.17, 814.73 and 177.98 is: 266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.17 : 814.73 = 177.98 : x
  2. Step 2: Convert to fraction form
    543.17/814.73 = 177.98/x
  3. Step 3: Cross multiply
    543.17x = 814.73 × 177.98
  4. Step 4: Simplify right side
    543.17x = 145,000.68
  5. Step 5: Solve for x
    x = 145,000.68/543.17
  6. Step 6: Final answer
    x = 266.95

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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.