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Finding the Fourth Proportional to 177.62, 267.47 and 155.06

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Solution

The fourth proportional to 177.62, 267.47 and 155.06 is: 233.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.62 : 267.47 = 155.06 : x
  2. Step 2: Convert to fraction form
    177.62/267.47 = 155.06/x
  3. Step 3: Cross multiply
    177.62x = 267.47 × 155.06
  4. Step 4: Simplify right side
    177.62x = 41,471.79
  5. Step 5: Solve for x
    x = 41,471.79/177.62
  6. Step 6: Final answer
    x = 233.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.