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Finding the Fourth Proportional to 203,049.52, 280,199.25 and 112,399.08

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Solution

The fourth proportional to 203,049.52, 280,199.25 and 112,399.08 is: 155,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,049.52 : 280,199.25 = 112,399.08 : x
  2. Step 2: Convert to fraction form
    203,049.52/280,199.25 = 112,399.08/x
  3. Step 3: Cross multiply
    203,049.52x = 280,199.25 × 112,399.08
  4. Step 4: Simplify right side
    203,049.52x = 31,494,136,865.94
  5. Step 5: Solve for x
    x = 31,494,136,865.94/203,049.52
  6. Step 6: Final answer
    x = 155,105.70

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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.