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Finding the Fourth Proportional to 324,689.55, 447,781.46 and 203,842.10

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Solution

The fourth proportional to 324,689.55, 447,781.46 and 203,842.10 is: 281,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,689.55 : 447,781.46 = 203,842.10 : x
  2. Step 2: Convert to fraction form
    324,689.55/447,781.46 = 203,842.10/x
  3. Step 3: Cross multiply
    324,689.55x = 447,781.46 × 203,842.10
  4. Step 4: Simplify right side
    324,689.55x = 91,276,709,889.35
  5. Step 5: Solve for x
    x = 91,276,709,889.35/324,689.55
  6. Step 6: Final answer
    x = 281,119.95

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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.