Home / 250,418.80-345,575.96-137,241.28

Finding the Fourth Proportional to 250,418.80, 345,575.96 and 137,241.28

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Solution

The fourth proportional to 250,418.80, 345,575.96 and 137,241.28 is: 189,391.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,418.80 : 345,575.96 = 137,241.28 : x
  2. Step 2: Convert to fraction form
    250,418.80/345,575.96 = 137,241.28/x
  3. Step 3: Cross multiply
    250,418.80x = 345,575.96 × 137,241.28
  4. Step 4: Simplify right side
    250,418.80x = 47,427,287,087.63
  5. Step 5: Solve for x
    x = 47,427,287,087.63/250,418.80
  6. Step 6: Final answer
    x = 189,391.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.