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Finding the Fourth Proportional to 258,848.44, 387,747.78 and 133,927

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Solution

The fourth proportional to 258,848.44, 387,747.78 and 133,927 is: 200,618.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,848.44 : 387,747.78 = 133,927 : x
  2. Step 2: Convert to fraction form
    258,848.44/387,747.78 = 133,927/x
  3. Step 3: Cross multiply
    258,848.44x = 387,747.78 × 133,927
  4. Step 4: Simplify right side
    258,848.44x = 51,929,896,932.06
  5. Step 5: Solve for x
    x = 51,929,896,932.06/258,848.44
  6. Step 6: Final answer
    x = 200,618.93

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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.