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Finding the Fourth Proportional to 177.02, 243.87 and 124.37

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Solution

The fourth proportional to 177.02, 243.87 and 124.37 is: 171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.02 : 243.87 = 124.37 : x
  2. Step 2: Convert to fraction form
    177.02/243.87 = 124.37/x
  3. Step 3: Cross multiply
    177.02x = 243.87 × 124.37
  4. Step 4: Simplify right side
    177.02x = 30,330.11
  5. Step 5: Solve for x
    x = 30,330.11/177.02
  6. Step 6: Final answer
    x = 171.34

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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.