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Finding the Fourth Proportional to 118.57, 177.87 and 37.39

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Solution

The fourth proportional to 118.57, 177.87 and 37.39 is: 56.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.57 : 177.87 = 37.39 : x
  2. Step 2: Convert to fraction form
    118.57/177.87 = 37.39/x
  3. Step 3: Cross multiply
    118.57x = 177.87 × 37.39
  4. Step 4: Simplify right side
    118.57x = 6,649.48
  5. Step 5: Solve for x
    x = 6,649.48/118.57
  6. Step 6: Final answer
    x = 56.08

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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.