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Finding the Fourth Proportional to 247,074.82, 340,963.21 and 133,897.57

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Solution

The fourth proportional to 247,074.82, 340,963.21 and 133,897.57 is: 184,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,074.82 : 340,963.21 = 133,897.57 : x
  2. Step 2: Convert to fraction form
    247,074.82/340,963.21 = 133,897.57/x
  3. Step 3: Cross multiply
    247,074.82x = 340,963.21 × 133,897.57
  4. Step 4: Simplify right side
    247,074.82x = 45,654,145,278.40
  5. Step 5: Solve for x
    x = 45,654,145,278.40/247,074.82
  6. Step 6: Final answer
    x = 184,778.62

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1.5x scale

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.