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Finding the Fourth Proportional to 187,761.59, 281,642.58 and 47,520.21

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Solution

The fourth proportional to 187,761.59, 281,642.58 and 47,520.21 is: 71,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,761.59 : 281,642.58 = 47,520.21 : x
  2. Step 2: Convert to fraction form
    187,761.59/281,642.58 = 47,520.21/x
  3. Step 3: Cross multiply
    187,761.59x = 281,642.58 × 47,520.21
  4. Step 4: Simplify right side
    187,761.59x = 13,383,714,546.54
  5. Step 5: Solve for x
    x = 13,383,714,546.54/187,761.59
  6. Step 6: Final answer
    x = 71,280.37

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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.