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Finding the Fourth Proportional to 237.34, 356.24 and 129.21

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Solution

The fourth proportional to 237.34, 356.24 and 129.21 is: 193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.34 : 356.24 = 129.21 : x
  2. Step 2: Convert to fraction form
    237.34/356.24 = 129.21/x
  3. Step 3: Cross multiply
    237.34x = 356.24 × 129.21
  4. Step 4: Simplify right side
    237.34x = 46,027.34
  5. Step 5: Solve for x
    x = 46,027.34/237.34
  6. Step 6: Final answer
    x = 193.93

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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.