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Finding the Fourth Proportional to 258,001.85, 386,904.36 and 123,042.08

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Solution

The fourth proportional to 258,001.85, 386,904.36 and 123,042.08 is: 184,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,001.85 : 386,904.36 = 123,042.08 : x
  2. Step 2: Convert to fraction form
    258,001.85/386,904.36 = 123,042.08/x
  3. Step 3: Cross multiply
    258,001.85x = 386,904.36 × 123,042.08
  4. Step 4: Simplify right side
    258,001.85x = 47,605,514,665.74
  5. Step 5: Solve for x
    x = 47,605,514,665.74/258,001.85
  6. Step 6: Final answer
    x = 184,516.18

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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.