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Finding the Fourth Proportional to 269,818.79, 404,657.71 and 80,228.11

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Solution

The fourth proportional to 269,818.79, 404,657.71 and 80,228.11 is: 120,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,818.79 : 404,657.71 = 80,228.11 : x
  2. Step 2: Convert to fraction form
    269,818.79/404,657.71 = 80,228.11/x
  3. Step 3: Cross multiply
    269,818.79x = 404,657.71 × 80,228.11
  4. Step 4: Simplify right side
    269,818.79x = 32,464,923,270.23
  5. Step 5: Solve for x
    x = 32,464,923,270.23/269,818.79
  6. Step 6: Final answer
    x = 120,321.21

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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.