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Finding the Fourth Proportional to 177.88, 245.67 and 119.56

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Solution

The fourth proportional to 177.88, 245.67 and 119.56 is: 165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.88 : 245.67 = 119.56 : x
  2. Step 2: Convert to fraction form
    177.88/245.67 = 119.56/x
  3. Step 3: Cross multiply
    177.88x = 245.67 × 119.56
  4. Step 4: Simplify right side
    177.88x = 29,372.31
  5. Step 5: Solve for x
    x = 29,372.31/177.88
  6. Step 6: Final answer
    x = 165.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.