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Finding the Fourth Proportional to 269,420.80, 404,098.80 and 111,632.80

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Solution

The fourth proportional to 269,420.80, 404,098.80 and 111,632.80 is: 167,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,420.80 : 404,098.80 = 111,632.80 : x
  2. Step 2: Convert to fraction form
    269,420.80/404,098.80 = 111,632.80/x
  3. Step 3: Cross multiply
    269,420.80x = 404,098.80 × 111,632.80
  4. Step 4: Simplify right side
    269,420.80x = 45,110,680,520.64
  5. Step 5: Solve for x
    x = 45,110,680,520.64/269,420.80
  6. Step 6: Final answer
    x = 167,435.78

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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.