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Finding the Fourth Proportional to 177.30, 265.50 and 131.49

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Solution

The fourth proportional to 177.30, 265.50 and 131.49 is: 196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.30 : 265.50 = 131.49 : x
  2. Step 2: Convert to fraction form
    177.30/265.50 = 131.49/x
  3. Step 3: Cross multiply
    177.30x = 265.50 × 131.49
  4. Step 4: Simplify right side
    177.30x = 34,910.60
  5. Step 5: Solve for x
    x = 34,910.60/177.30
  6. Step 6: Final answer
    x = 196.90

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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.