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Finding the Fourth Proportional to 536,449.80, 804,383.10 and 220,938.60

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Solution

The fourth proportional to 536,449.80, 804,383.10 and 220,938.60 is: 331,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,449.80 : 804,383.10 = 220,938.60 : x
  2. Step 2: Convert to fraction form
    536,449.80/804,383.10 = 220,938.60/x
  3. Step 3: Cross multiply
    536,449.80x = 804,383.10 × 220,938.60
  4. Step 4: Simplify right side
    536,449.80x = 177,719,275,977.66
  5. Step 5: Solve for x
    x = 177,719,275,977.66/536,449.80
  6. Step 6: Final answer
    x = 331,287.80

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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.