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Finding the Fourth Proportional to 483,939.80, 725,909.70 and 146,979.80

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Solution

The fourth proportional to 483,939.80, 725,909.70 and 146,979.80 is: 220,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,939.80 : 725,909.70 = 146,979.80 : x
  2. Step 2: Convert to fraction form
    483,939.80/725,909.70 = 146,979.80/x
  3. Step 3: Cross multiply
    483,939.80x = 725,909.70 × 146,979.80
  4. Step 4: Simplify right side
    483,939.80x = 106,694,062,524.06
  5. Step 5: Solve for x
    x = 106,694,062,524.06/483,939.80
  6. Step 6: Final answer
    x = 220,469.70

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Similar ratio
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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.