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Finding the Fourth Proportional to 268,183.76, 402,275.29 and 68,504.30

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Solution

The fourth proportional to 268,183.76, 402,275.29 and 68,504.30 is: 102,756.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,183.76 : 402,275.29 = 68,504.30 : x
  2. Step 2: Convert to fraction form
    268,183.76/402,275.29 = 68,504.30/x
  3. Step 3: Cross multiply
    268,183.76x = 402,275.29 × 68,504.30
  4. Step 4: Simplify right side
    268,183.76x = 27,557,587,148.75
  5. Step 5: Solve for x
    x = 27,557,587,148.75/268,183.76
  6. Step 6: Final answer
    x = 102,756.36

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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.