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Finding the Fourth Proportional to 247,750.18, 371,680.62 and 79,280.61

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Solution

The fourth proportional to 247,750.18, 371,680.62 and 79,280.61 is: 118,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,750.18 : 371,680.62 = 79,280.61 : x
  2. Step 2: Convert to fraction form
    247,750.18/371,680.62 = 79,280.61/x
  3. Step 3: Cross multiply
    247,750.18x = 371,680.62 × 79,280.61
  4. Step 4: Simplify right side
    247,750.18x = 29,467,067,608.65
  5. Step 5: Solve for x
    x = 29,467,067,608.65/247,750.18
  6. Step 6: Final answer
    x = 118,938.63

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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.