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Finding the Fourth Proportional to 279,213.40, 418,820.10 and 110,773.90

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Solution

The fourth proportional to 279,213.40, 418,820.10 and 110,773.90 is: 166,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,213.40 : 418,820.10 = 110,773.90 : x
  2. Step 2: Convert to fraction form
    279,213.40/418,820.10 = 110,773.90/x
  3. Step 3: Cross multiply
    279,213.40x = 418,820.10 × 110,773.90
  4. Step 4: Simplify right side
    279,213.40x = 46,394,335,875.39
  5. Step 5: Solve for x
    x = 46,394,335,875.39/279,213.40
  6. Step 6: Final answer
    x = 166,160.85

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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.