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Finding the Fourth Proportional to 269,672.90, 404,655.15 and 111,917.30

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Solution

The fourth proportional to 269,672.90, 404,655.15 and 111,917.30 is: 167,936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,672.90 : 404,655.15 = 111,917.30 : x
  2. Step 2: Convert to fraction form
    269,672.90/404,655.15 = 111,917.30/x
  3. Step 3: Cross multiply
    269,672.90x = 404,655.15 × 111,917.30
  4. Step 4: Simplify right side
    269,672.90x = 45,287,911,819.10
  5. Step 5: Solve for x
    x = 45,287,911,819.10/269,672.90
  6. Step 6: Final answer
    x = 167,936.46

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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.