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Finding the Fourth Proportional to 237.48, 356.36 and 129.35

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Solution

The fourth proportional to 237.48, 356.36 and 129.35 is: 194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.48 : 356.36 = 129.35 : x
  2. Step 2: Convert to fraction form
    237.48/356.36 = 129.35/x
  3. Step 3: Cross multiply
    237.48x = 356.36 × 129.35
  4. Step 4: Simplify right side
    237.48x = 46,092.74
  5. Step 5: Solve for x
    x = 46,092.74/237.48
  6. Step 6: Final answer
    x = 194.09

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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.