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Finding the Fourth Proportional to 187,420.20, 281,195.10 and 180,940.20

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Solution

The fourth proportional to 187,420.20, 281,195.10 and 180,940.20 is: 271,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,420.20 : 281,195.10 = 180,940.20 : x
  2. Step 2: Convert to fraction form
    187,420.20/281,195.10 = 180,940.20/x
  3. Step 3: Cross multiply
    187,420.20x = 281,195.10 × 180,940.20
  4. Step 4: Simplify right side
    187,420.20x = 50,879,497,633.02
  5. Step 5: Solve for x
    x = 50,879,497,633.02/187,420.20
  6. Step 6: Final answer
    x = 271,472.86

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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.