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Finding the Fourth Proportional to 250,391.89, 345,540.33 and 135,673.64

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Solution

The fourth proportional to 250,391.89, 345,540.33 and 135,673.64 is: 187,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,391.89 : 345,540.33 = 135,673.64 : x
  2. Step 2: Convert to fraction form
    250,391.89/345,540.33 = 135,673.64/x
  3. Step 3: Cross multiply
    250,391.89x = 345,540.33 × 135,673.64
  4. Step 4: Simplify right side
    250,391.89x = 46,880,712,610.20
  5. Step 5: Solve for x
    x = 46,880,712,610.20/250,391.89
  6. Step 6: Final answer
    x = 187,229.36

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1.5x scale

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.