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Finding the Fourth Proportional to 275,584.38, 380,311.11 and 153,073.50

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Solution

The fourth proportional to 275,584.38, 380,311.11 and 153,073.50 is: 211,244.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,584.38 : 380,311.11 = 153,073.50 : x
  2. Step 2: Convert to fraction form
    275,584.38/380,311.11 = 153,073.50/x
  3. Step 3: Cross multiply
    275,584.38x = 380,311.11 × 153,073.50
  4. Step 4: Simplify right side
    275,584.38x = 58,215,552,696.59
  5. Step 5: Solve for x
    x = 58,215,552,696.59/275,584.38
  6. Step 6: Final answer
    x = 211,244.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.