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Finding the Fourth Proportional to 275,687.80, 413,580.30 and 98,297.80

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Solution

The fourth proportional to 275,687.80, 413,580.30 and 98,297.80 is: 147,464.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,687.80 : 413,580.30 = 98,297.80 : x
  2. Step 2: Convert to fraction form
    275,687.80/413,580.30 = 98,297.80/x
  3. Step 3: Cross multiply
    275,687.80x = 413,580.30 × 98,297.80
  4. Step 4: Simplify right side
    275,687.80x = 40,654,033,613.34
  5. Step 5: Solve for x
    x = 40,654,033,613.34/275,687.80
  6. Step 6: Final answer
    x = 147,464.03

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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.