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Finding the Fourth Proportional to 247,323.75, 341,306.82 and 139,891.47

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Solution

The fourth proportional to 247,323.75, 341,306.82 and 139,891.47 is: 193,050.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,323.75 : 341,306.82 = 139,891.47 : x
  2. Step 2: Convert to fraction form
    247,323.75/341,306.82 = 139,891.47/x
  3. Step 3: Cross multiply
    247,323.75x = 341,306.82 × 139,891.47
  4. Step 4: Simplify right side
    247,323.75x = 47,745,912,770.83
  5. Step 5: Solve for x
    x = 47,745,912,770.83/247,323.75
  6. Step 6: Final answer
    x = 193,050.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.