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Finding the Fourth Proportional to 273,110.40, 409,723.20 and 115,257.60

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Solution

The fourth proportional to 273,110.40, 409,723.20 and 115,257.60 is: 172,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,110.40 : 409,723.20 = 115,257.60 : x
  2. Step 2: Convert to fraction form
    273,110.40/409,723.20 = 115,257.60/x
  3. Step 3: Cross multiply
    273,110.40x = 409,723.20 × 115,257.60
  4. Step 4: Simplify right side
    273,110.40x = 47,223,712,696.32
  5. Step 5: Solve for x
    x = 47,223,712,696.32/273,110.40
  6. Step 6: Final answer
    x = 172,910.71

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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.