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Finding the Fourth Proportional to 440,251.29, 660,477.78 and 159,768.54

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Solution

The fourth proportional to 440,251.29, 660,477.78 and 159,768.54 is: 239,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,251.29 : 660,477.78 = 159,768.54 : x
  2. Step 2: Convert to fraction form
    440,251.29/660,477.78 = 159,768.54/x
  3. Step 3: Cross multiply
    440,251.29x = 660,477.78 × 159,768.54
  4. Step 4: Simplify right side
    440,251.29x = 105,523,570,613.04
  5. Step 5: Solve for x
    x = 105,523,570,613.04/440,251.29
  6. Step 6: Final answer
    x = 239,689.41

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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.