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Finding the Fourth Proportional to 247,705.25, 371,700.89 and 133,853.45

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Solution

The fourth proportional to 247,705.25, 371,700.89 and 133,853.45 is: 200,857.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,705.25 : 371,700.89 = 133,853.45 : x
  2. Step 2: Convert to fraction form
    247,705.25/371,700.89 = 133,853.45/x
  3. Step 3: Cross multiply
    247,705.25x = 371,700.89 × 133,853.45
  4. Step 4: Simplify right side
    247,705.25x = 49,753,446,494.57
  5. Step 5: Solve for x
    x = 49,753,446,494.57/247,705.25
  6. Step 6: Final answer
    x = 200,857.46

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1.5x scale

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.