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Finding the Fourth Proportional to 298,052.70, 447,079.05 and 270,933.90

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Solution

The fourth proportional to 298,052.70, 447,079.05 and 270,933.90 is: 406,400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,052.70 : 447,079.05 = 270,933.90 : x
  2. Step 2: Convert to fraction form
    298,052.70/447,079.05 = 270,933.90/x
  3. Step 3: Cross multiply
    298,052.70x = 447,079.05 × 270,933.90
  4. Step 4: Simplify right side
    298,052.70x = 121,128,870,624.80
  5. Step 5: Solve for x
    x = 121,128,870,624.80/298,052.70
  6. Step 6: Final answer
    x = 406,400.85

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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.