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Finding the Fourth Proportional to 269,471.70, 404,207.55 and 79,938.90

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Solution

The fourth proportional to 269,471.70, 404,207.55 and 79,938.90 is: 119,908.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,471.70 : 404,207.55 = 79,938.90 : x
  2. Step 2: Convert to fraction form
    269,471.70/404,207.55 = 79,938.90/x
  3. Step 3: Cross multiply
    269,471.70x = 404,207.55 × 79,938.90
  4. Step 4: Simplify right side
    269,471.70x = 32,311,906,918.70
  5. Step 5: Solve for x
    x = 32,311,906,918.70/269,471.70
  6. Step 6: Final answer
    x = 119,908.35

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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.