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Finding the Fourth Proportional to 440,568, 608,035.68 and 261,720

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Solution

The fourth proportional to 440,568, 608,035.68 and 261,720 is: 361,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,568 : 608,035.68 = 261,720 : x
  2. Step 2: Convert to fraction form
    440,568/608,035.68 = 261,720/x
  3. Step 3: Cross multiply
    440,568x = 608,035.68 × 261,720
  4. Step 4: Simplify right side
    440,568x = 159,135,098,169.60
  5. Step 5: Solve for x
    x = 159,135,098,169.60/440,568
  6. Step 6: Final answer
    x = 361,204.40

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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.