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Finding the Fourth Proportional to 234,640.32, 351,960.48 and 68,441.28

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Solution

The fourth proportional to 234,640.32, 351,960.48 and 68,441.28 is: 102,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,640.32 : 351,960.48 = 68,441.28 : x
  2. Step 2: Convert to fraction form
    234,640.32/351,960.48 = 68,441.28/x
  3. Step 3: Cross multiply
    234,640.32x = 351,960.48 × 68,441.28
  4. Step 4: Simplify right side
    234,640.32x = 24,088,625,760.61
  5. Step 5: Solve for x
    x = 24,088,625,760.61/234,640.32
  6. Step 6: Final answer
    x = 102,661.92

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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.