Home / 203,177.20-280,401.88-118,320.88

Finding the Fourth Proportional to 203,177.20, 280,401.88 and 118,320.88

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Solution

The fourth proportional to 203,177.20, 280,401.88 and 118,320.88 is: 163,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,177.20 : 280,401.88 = 118,320.88 : x
  2. Step 2: Convert to fraction form
    203,177.20/280,401.88 = 118,320.88/x
  3. Step 3: Cross multiply
    203,177.20x = 280,401.88 × 118,320.88
  4. Step 4: Simplify right side
    203,177.20x = 33,177,397,195.25
  5. Step 5: Solve for x
    x = 33,177,397,195.25/203,177.20
  6. Step 6: Final answer
    x = 163,292.91

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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.