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Finding the Fourth Proportional to 177.33, 266.07 and 55.61

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Solution

The fourth proportional to 177.33, 266.07 and 55.61 is: 83.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.33 : 266.07 = 55.61 : x
  2. Step 2: Convert to fraction form
    177.33/266.07 = 55.61/x
  3. Step 3: Cross multiply
    177.33x = 266.07 × 55.61
  4. Step 4: Simplify right side
    177.33x = 14,796.15
  5. Step 5: Solve for x
    x = 14,796.15/177.33
  6. Step 6: Final answer
    x = 83.44

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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.