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Finding the Fourth Proportional to 252,614.80, 378,047.40 and 231,619.60

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Solution

The fourth proportional to 252,614.80, 378,047.40 and 231,619.60 is: 346,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,614.80 : 378,047.40 = 231,619.60 : x
  2. Step 2: Convert to fraction form
    252,614.80/378,047.40 = 231,619.60/x
  3. Step 3: Cross multiply
    252,614.80x = 378,047.40 × 231,619.60
  4. Step 4: Simplify right side
    252,614.80x = 87,563,187,569.04
  5. Step 5: Solve for x
    x = 87,563,187,569.04/252,614.80
  6. Step 6: Final answer
    x = 346,627.31

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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.