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Finding the Fourth Proportional to 440,989.43, 661,481.64 and 160,506.68

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Solution

The fourth proportional to 440,989.43, 661,481.64 and 160,506.68 is: 240,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,989.43 : 661,481.64 = 160,506.68 : x
  2. Step 2: Convert to fraction form
    440,989.43/661,481.64 = 160,506.68/x
  3. Step 3: Cross multiply
    440,989.43x = 661,481.64 × 160,506.68
  4. Step 4: Simplify right side
    440,989.43x = 106,172,218,609.95
  5. Step 5: Solve for x
    x = 106,172,218,609.95/440,989.43
  6. Step 6: Final answer
    x = 240,759.10

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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.