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Finding the Fourth Proportional to 268,155.72, 402,233.23 and 68,476

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Solution

The fourth proportional to 268,155.72, 402,233.23 and 68,476 is: 102,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,155.72 : 402,233.23 = 68,476 : x
  2. Step 2: Convert to fraction form
    268,155.72/402,233.23 = 68,476/x
  3. Step 3: Cross multiply
    268,155.72x = 402,233.23 × 68,476
  4. Step 4: Simplify right side
    268,155.72x = 27,543,322,657.48
  5. Step 5: Solve for x
    x = 27,543,322,657.48/268,155.72
  6. Step 6: Final answer
    x = 102,713.91

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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.