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Finding the Fourth Proportional to 273,388.40, 410,140.20 and 115,535.60

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Solution

The fourth proportional to 273,388.40, 410,140.20 and 115,535.60 is: 173,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,388.40 : 410,140.20 = 115,535.60 : x
  2. Step 2: Convert to fraction form
    273,388.40/410,140.20 = 115,535.60/x
  3. Step 3: Cross multiply
    273,388.40x = 410,140.20 × 115,535.60
  4. Step 4: Simplify right side
    273,388.40x = 47,385,794,091.12
  5. Step 5: Solve for x
    x = 47,385,794,091.12/273,388.40
  6. Step 6: Final answer
    x = 173,327.74

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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.