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Finding the Fourth Proportional to 238,379.88, 357,717.48 and 138,587.04

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Solution

The fourth proportional to 238,379.88, 357,717.48 and 138,587.04 is: 207,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,379.88 : 357,717.48 = 138,587.04 : x
  2. Step 2: Convert to fraction form
    238,379.88/357,717.48 = 138,587.04/x
  3. Step 3: Cross multiply
    238,379.88x = 357,717.48 × 138,587.04
  4. Step 4: Simplify right side
    238,379.88x = 49,575,006,709.46
  5. Step 5: Solve for x
    x = 49,575,006,709.46/238,379.88
  6. Step 6: Final answer
    x = 207,966.41

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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.