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Finding the Fourth Proportional to 237.93, 356.73 and 129.80

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Solution

The fourth proportional to 237.93, 356.73 and 129.80 is: 194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.93 : 356.73 = 129.80 : x
  2. Step 2: Convert to fraction form
    237.93/356.73 = 129.80/x
  3. Step 3: Cross multiply
    237.93x = 356.73 × 129.80
  4. Step 4: Simplify right side
    237.93x = 46,303.55
  5. Step 5: Solve for x
    x = 46,303.55/237.93
  6. Step 6: Final answer
    x = 194.61

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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.