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Finding the Fourth Proportional to 187,348.20, 281,022.30 and 108,664.80

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Solution

The fourth proportional to 187,348.20, 281,022.30 and 108,664.80 is: 162,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,348.20 : 281,022.30 = 108,664.80 : x
  2. Step 2: Convert to fraction form
    187,348.20/281,022.30 = 108,664.80/x
  3. Step 3: Cross multiply
    187,348.20x = 281,022.30 × 108,664.80
  4. Step 4: Simplify right side
    187,348.20x = 30,537,232,025.04
  5. Step 5: Solve for x
    x = 30,537,232,025.04/187,348.20
  6. Step 6: Final answer
    x = 162,997.20

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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.