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Finding the Fourth Proportional to 408,755.20, 564,131.30 and 247,605.52

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Solution

The fourth proportional to 408,755.20, 564,131.30 and 247,605.52 is: 341,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,755.20 : 564,131.30 = 247,605.52 : x
  2. Step 2: Convert to fraction form
    408,755.20/564,131.30 = 247,605.52/x
  3. Step 3: Cross multiply
    408,755.20x = 564,131.30 × 247,605.52
  4. Step 4: Simplify right side
    408,755.20x = 139,682,023,884.78
  5. Step 5: Solve for x
    x = 139,682,023,884.78/408,755.20
  6. Step 6: Final answer
    x = 341,725.37

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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.