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Finding the Fourth Proportional to 181,888.56, 251,044.92 and 122,238

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Solution

The fourth proportional to 181,888.56, 251,044.92 and 122,238 is: 168,714.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,888.56 : 251,044.92 = 122,238 : x
  2. Step 2: Convert to fraction form
    181,888.56/251,044.92 = 122,238/x
  3. Step 3: Cross multiply
    181,888.56x = 251,044.92 × 122,238
  4. Step 4: Simplify right side
    181,888.56x = 30,687,228,930.96
  5. Step 5: Solve for x
    x = 30,687,228,930.96/181,888.56
  6. Step 6: Final answer
    x = 168,714.45

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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.