Home / 203,229.51-280,456.68-112,591.36

Finding the Fourth Proportional to 203,229.51, 280,456.68 and 112,591.36

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Solution

The fourth proportional to 203,229.51, 280,456.68 and 112,591.36 is: 155,376.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,229.51 : 280,456.68 = 112,591.36 : x
  2. Step 2: Convert to fraction form
    203,229.51/280,456.68 = 112,591.36/x
  3. Step 3: Cross multiply
    203,229.51x = 280,456.68 × 112,591.36
  4. Step 4: Simplify right side
    203,229.51x = 31,576,999,022.28
  5. Step 5: Solve for x
    x = 31,576,999,022.28/203,229.51
  6. Step 6: Final answer
    x = 155,376.06

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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.