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Finding the Fourth Proportional to 259,306.32, 389,173.32 and 200,500.32

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Solution

The fourth proportional to 259,306.32, 389,173.32 and 200,500.32 is: 300,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,306.32 : 389,173.32 = 200,500.32 : x
  2. Step 2: Convert to fraction form
    259,306.32/389,173.32 = 200,500.32/x
  3. Step 3: Cross multiply
    259,306.32x = 389,173.32 × 200,500.32
  4. Step 4: Simplify right side
    259,306.32x = 78,029,375,195.46
  5. Step 5: Solve for x
    x = 78,029,375,195.46/259,306.32
  6. Step 6: Final answer
    x = 300,915.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.