Home / 203,220.27-280,440.30-112,575.96

Finding the Fourth Proportional to 203,220.27, 280,440.30 and 112,575.96

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Solution

The fourth proportional to 203,220.27, 280,440.30 and 112,575.96 is: 155,352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,220.27 : 280,440.30 = 112,575.96 : x
  2. Step 2: Convert to fraction form
    203,220.27/280,440.30 = 112,575.96/x
  3. Step 3: Cross multiply
    203,220.27x = 280,440.30 × 112,575.96
  4. Step 4: Simplify right side
    203,220.27x = 31,570,836,696.29
  5. Step 5: Solve for x
    x = 31,570,836,696.29/203,220.27
  6. Step 6: Final answer
    x = 155,352.79

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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.