Home / 202,900.20-280,062.56-131,278.40

Finding the Fourth Proportional to 202,900.20, 280,062.56 and 131,278.40

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Solution

The fourth proportional to 202,900.20, 280,062.56 and 131,278.40 is: 181,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,900.20 : 280,062.56 = 131,278.40 : x
  2. Step 2: Convert to fraction form
    202,900.20/280,062.56 = 131,278.40/x
  3. Step 3: Cross multiply
    202,900.20x = 280,062.56 × 131,278.40
  4. Step 4: Simplify right side
    202,900.20x = 36,766,164,776.70
  5. Step 5: Solve for x
    x = 36,766,164,776.70/202,900.20
  6. Step 6: Final answer
    x = 181,203.20

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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.