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Finding the Fourth Proportional to 187,477.20, 281,215.80 and 108,793.80

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Solution

The fourth proportional to 187,477.20, 281,215.80 and 108,793.80 is: 163,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,477.20 : 281,215.80 = 108,793.80 : x
  2. Step 2: Convert to fraction form
    187,477.20/281,215.80 = 108,793.80/x
  3. Step 3: Cross multiply
    187,477.20x = 281,215.80 × 108,793.80
  4. Step 4: Simplify right side
    187,477.20x = 30,594,535,502.04
  5. Step 5: Solve for x
    x = 30,594,535,502.04/187,477.20
  6. Step 6: Final answer
    x = 163,190.70

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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.