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Finding the Fourth Proportional to 181.43, 250.25 and 126.15

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Solution

The fourth proportional to 181.43, 250.25 and 126.15 is: 174.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.43 : 250.25 = 126.15 : x
  2. Step 2: Convert to fraction form
    181.43/250.25 = 126.15/x
  3. Step 3: Cross multiply
    181.43x = 250.25 × 126.15
  4. Step 4: Simplify right side
    181.43x = 31,569.35
  5. Step 5: Solve for x
    x = 31,569.35/181.43
  6. Step 6: Final answer
    x = 174.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.