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Finding the Fourth Proportional to 203,499.02, 280,843.08 and 112,863.65

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Solution

The fourth proportional to 203,499.02, 280,843.08 and 112,863.65 is: 155,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,499.02 : 280,843.08 = 112,863.65 : x
  2. Step 2: Convert to fraction form
    203,499.02/280,843.08 = 112,863.65/x
  3. Step 3: Cross multiply
    203,499.02x = 280,843.08 × 112,863.65
  4. Step 4: Simplify right side
    203,499.02x = 31,696,975,086.04
  5. Step 5: Solve for x
    x = 31,696,975,086.04/203,499.02
  6. Step 6: Final answer
    x = 155,759.84

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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.