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Finding the Fourth Proportional to 275,463.60, 413,195.40 and 272,839.20

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Solution

The fourth proportional to 275,463.60, 413,195.40 and 272,839.20 is: 409,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,463.60 : 413,195.40 = 272,839.20 : x
  2. Step 2: Convert to fraction form
    275,463.60/413,195.40 = 272,839.20/x
  3. Step 3: Cross multiply
    275,463.60x = 413,195.40 × 272,839.20
  4. Step 4: Simplify right side
    275,463.60x = 112,735,902,379.68
  5. Step 5: Solve for x
    x = 112,735,902,379.68/275,463.60
  6. Step 6: Final answer
    x = 409,258.80

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1.5x scale

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.