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Finding the Fourth Proportional to 247,876.83, 371,839.86 and 79,354.82

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Solution

The fourth proportional to 247,876.83, 371,839.86 and 79,354.82 is: 119,040.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,876.83 : 371,839.86 = 79,354.82 : x
  2. Step 2: Convert to fraction form
    247,876.83/371,839.86 = 79,354.82/x
  3. Step 3: Cross multiply
    247,876.83x = 371,839.86 × 79,354.82
  4. Step 4: Simplify right side
    247,876.83x = 29,507,286,088.72
  5. Step 5: Solve for x
    x = 29,507,286,088.72/247,876.83
  6. Step 6: Final answer
    x = 119,040.11

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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.