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Finding the Fourth Proportional to 269,559.70, 404,266.65 and 80,019.70

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Solution

The fourth proportional to 269,559.70, 404,266.65 and 80,019.70 is: 120,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,559.70 : 404,266.65 = 80,019.70 : x
  2. Step 2: Convert to fraction form
    269,559.70/404,266.65 = 80,019.70/x
  3. Step 3: Cross multiply
    269,559.70x = 404,266.65 × 80,019.70
  4. Step 4: Simplify right side
    269,559.70x = 32,349,296,053.01
  5. Step 5: Solve for x
    x = 32,349,296,053.01/269,559.70
  6. Step 6: Final answer
    x = 120,007.91

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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.