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Finding the Fourth Proportional to 177.44, 266.32 and 165.60

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Solution

The fourth proportional to 177.44, 266.32 and 165.60 is: 248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.44 : 266.32 = 165.60 : x
  2. Step 2: Convert to fraction form
    177.44/266.32 = 165.60/x
  3. Step 3: Cross multiply
    177.44x = 266.32 × 165.60
  4. Step 4: Simplify right side
    177.44x = 44,102.59
  5. Step 5: Solve for x
    x = 44,102.59/177.44
  6. Step 6: Final answer
    x = 248.55

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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.