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Finding the Fourth Proportional to 279,221.44, 418,830.24 and 113,007.04

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Solution

The fourth proportional to 279,221.44, 418,830.24 and 113,007.04 is: 169,509.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,221.44 : 418,830.24 = 113,007.04 : x
  2. Step 2: Convert to fraction form
    279,221.44/418,830.24 = 113,007.04/x
  3. Step 3: Cross multiply
    279,221.44x = 418,830.24 × 113,007.04
  4. Step 4: Simplify right side
    279,221.44x = 47,330,765,684.89
  5. Step 5: Solve for x
    x = 47,330,765,684.89/279,221.44
  6. Step 6: Final answer
    x = 169,509.78

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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.