Home / 203,220.28-280,440.30-112,575.97

Finding the Fourth Proportional to 203,220.28, 280,440.30 and 112,575.97

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Solution

The fourth proportional to 203,220.28, 280,440.30 and 112,575.97 is: 155,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,220.28 : 280,440.30 = 112,575.97 : x
  2. Step 2: Convert to fraction form
    203,220.28/280,440.30 = 112,575.97/x
  3. Step 3: Cross multiply
    203,220.28x = 280,440.30 × 112,575.97
  4. Step 4: Simplify right side
    203,220.28x = 31,570,838,799.59
  5. Step 5: Solve for x
    x = 31,570,838,799.59/203,220.28
  6. Step 6: Final answer
    x = 155,352.80

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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.