Home / 202,917.40-280,034.26-112,271.90

Finding the Fourth Proportional to 202,917.40, 280,034.26 and 112,271.90

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Solution

The fourth proportional to 202,917.40, 280,034.26 and 112,271.90 is: 154,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,917.40 : 280,034.26 = 112,271.90 : x
  2. Step 2: Convert to fraction form
    202,917.40/280,034.26 = 112,271.90/x
  3. Step 3: Cross multiply
    202,917.40x = 280,034.26 × 112,271.90
  4. Step 4: Simplify right side
    202,917.40x = 31,439,978,435.29
  5. Step 5: Solve for x
    x = 31,439,978,435.29/202,917.40
  6. Step 6: Final answer
    x = 154,939.79

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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.