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Finding the Fourth Proportional to 273,230.40, 409,845.60 and 271,480.80

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Solution

The fourth proportional to 273,230.40, 409,845.60 and 271,480.80 is: 407,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,230.40 : 409,845.60 = 271,480.80 : x
  2. Step 2: Convert to fraction form
    273,230.40/409,845.60 = 271,480.80/x
  3. Step 3: Cross multiply
    273,230.40x = 409,845.60 × 271,480.80
  4. Step 4: Simplify right side
    273,230.40x = 111,265,211,364.48
  5. Step 5: Solve for x
    x = 111,265,211,364.48/273,230.40
  6. Step 6: Final answer
    x = 407,221.20

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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.