Home / 205,540.40-308,310.60-158,826.80

Finding the Fourth Proportional to 205,540.40, 308,310.60 and 158,826.80

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Solution

The fourth proportional to 205,540.40, 308,310.60 and 158,826.80 is: 238,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,540.40 : 308,310.60 = 158,826.80 : x
  2. Step 2: Convert to fraction form
    205,540.40/308,310.60 = 158,826.80/x
  3. Step 3: Cross multiply
    205,540.40x = 308,310.60 × 158,826.80
  4. Step 4: Simplify right side
    205,540.40x = 48,967,986,004.08
  5. Step 5: Solve for x
    x = 48,967,986,004.08/205,540.40
  6. Step 6: Final answer
    x = 238,240.20

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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.