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Finding the Fourth Proportional to 273,218.40, 409,827.60 and 271,468.80

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Solution

The fourth proportional to 273,218.40, 409,827.60 and 271,468.80 is: 407,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,218.40 : 409,827.60 = 271,468.80 : x
  2. Step 2: Convert to fraction form
    273,218.40/409,827.60 = 271,468.80/x
  3. Step 3: Cross multiply
    273,218.40x = 409,827.60 × 271,468.80
  4. Step 4: Simplify right side
    273,218.40x = 111,255,406,778.88
  5. Step 5: Solve for x
    x = 111,255,406,778.88/273,218.40
  6. Step 6: Final answer
    x = 407,203.20

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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.