Home / 204,026.80-306,040.20-129,231.40

Finding the Fourth Proportional to 204,026.80, 306,040.20 and 129,231.40

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Solution

The fourth proportional to 204,026.80, 306,040.20 and 129,231.40 is: 193,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,026.80 : 306,040.20 = 129,231.40 : x
  2. Step 2: Convert to fraction form
    204,026.80/306,040.20 = 129,231.40/x
  3. Step 3: Cross multiply
    204,026.80x = 306,040.20 × 129,231.40
  4. Step 4: Simplify right side
    204,026.80x = 39,550,003,502.28
  5. Step 5: Solve for x
    x = 39,550,003,502.28/204,026.80
  6. Step 6: Final answer
    x = 193,847.10

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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.