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Finding the Fourth Proportional to 151.93, 226.58 and 129.25

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Solution

The fourth proportional to 151.93, 226.58 and 129.25 is: 192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.93 : 226.58 = 129.25 : x
  2. Step 2: Convert to fraction form
    151.93/226.58 = 129.25/x
  3. Step 3: Cross multiply
    151.93x = 226.58 × 129.25
  4. Step 4: Simplify right side
    151.93x = 29,285.47
  5. Step 5: Solve for x
    x = 29,285.47/151.93
  6. Step 6: Final answer
    x = 192.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.