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Finding the Fourth Proportional to 181.47, 250.06 and 125.47

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Solution

The fourth proportional to 181.47, 250.06 and 125.47 is: 172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.47 : 250.06 = 125.47 : x
  2. Step 2: Convert to fraction form
    181.47/250.06 = 125.47/x
  3. Step 3: Cross multiply
    181.47x = 250.06 × 125.47
  4. Step 4: Simplify right side
    181.47x = 31,374.09
  5. Step 5: Solve for x
    x = 31,374.09/181.47
  6. Step 6: Final answer
    x = 172.89

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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.