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Finding the Fourth Proportional to 177.39, 244.60 and 153.71

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Solution

The fourth proportional to 177.39, 244.60 and 153.71 is: 211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.39 : 244.60 = 153.71 : x
  2. Step 2: Convert to fraction form
    177.39/244.60 = 153.71/x
  3. Step 3: Cross multiply
    177.39x = 244.60 × 153.71
  4. Step 4: Simplify right side
    177.39x = 37,597.69
  5. Step 5: Solve for x
    x = 37,597.69/177.39
  6. Step 6: Final answer
    x = 211.94

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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.