Home / 203,310.36-280,574.45-112,657.85

Finding the Fourth Proportional to 203,310.36, 280,574.45 and 112,657.85

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Solution

The fourth proportional to 203,310.36, 280,574.45 and 112,657.85 is: 155,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,310.36 : 280,574.45 = 112,657.85 : x
  2. Step 2: Convert to fraction form
    203,310.36/280,574.45 = 112,657.85/x
  3. Step 3: Cross multiply
    203,310.36x = 280,574.45 × 112,657.85
  4. Step 4: Simplify right side
    203,310.36x = 31,608,912,335.77
  5. Step 5: Solve for x
    x = 31,608,912,335.77/203,310.36
  6. Step 6: Final answer
    x = 155,471.23

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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.