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Finding the Fourth Proportional to 279,213.32, 418,820.02 and 195,137.69

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Solution

The fourth proportional to 279,213.32, 418,820.02 and 195,137.69 is: 292,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,213.32 : 418,820.02 = 195,137.69 : x
  2. Step 2: Convert to fraction form
    279,213.32/418,820.02 = 195,137.69/x
  3. Step 3: Cross multiply
    279,213.32x = 418,820.02 × 195,137.69
  4. Step 4: Simplify right side
    279,213.32x = 81,727,568,646.61
  5. Step 5: Solve for x
    x = 81,727,568,646.61/279,213.32
  6. Step 6: Final answer
    x = 292,706.55

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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.