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Finding the Fourth Proportional to 324,631.70, 447,994.00 and 181,397.78

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Solution

The fourth proportional to 324,631.70, 447,994.00 and 181,397.78 is: 250,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,631.70 : 447,994.00 = 181,397.78 : x
  2. Step 2: Convert to fraction form
    324,631.70/447,994.00 = 181,397.78/x
  3. Step 3: Cross multiply
    324,631.70x = 447,994.00 × 181,397.78
  4. Step 4: Simplify right side
    324,631.70x = 81,265,118,400.05
  5. Step 5: Solve for x
    x = 81,265,118,400.05/324,631.70
  6. Step 6: Final answer
    x = 250,330.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.