Home / 203,201.18-280,405.29-112,551.85

Finding the Fourth Proportional to 203,201.18, 280,405.29 and 112,551.85

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Solution

The fourth proportional to 203,201.18, 280,405.29 and 112,551.85 is: 155,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,201.18 : 280,405.29 = 112,551.85 : x
  2. Step 2: Convert to fraction form
    203,201.18/280,405.29 = 112,551.85/x
  3. Step 3: Cross multiply
    203,201.18x = 280,405.29 × 112,551.85
  4. Step 4: Simplify right side
    203,201.18x = 31,560,134,139.29
  5. Step 5: Solve for x
    x = 31,560,134,139.29/203,201.18
  6. Step 6: Final answer
    x = 155,314.72

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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.