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Finding the Fourth Proportional to 252,612.80, 378,044.40 and 231,617.60

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Solution

The fourth proportional to 252,612.80, 378,044.40 and 231,617.60 is: 346,624.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,612.80 : 378,044.40 = 231,617.60 : x
  2. Step 2: Convert to fraction form
    252,612.80/378,044.40 = 231,617.60/x
  3. Step 3: Cross multiply
    252,612.80x = 378,044.40 × 231,617.60
  4. Step 4: Simplify right side
    252,612.80x = 87,561,736,621.44
  5. Step 5: Solve for x
    x = 87,561,736,621.44/252,612.80
  6. Step 6: Final answer
    x = 346,624.31

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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.