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Finding the Fourth Proportional to 269,855.74, 404,712.94 and 80,265.12

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Solution

The fourth proportional to 269,855.74, 404,712.94 and 80,265.12 is: 120,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,855.74 : 404,712.94 = 80,265.12 : x
  2. Step 2: Convert to fraction form
    269,855.74/404,712.94 = 80,265.12/x
  3. Step 3: Cross multiply
    269,855.74x = 404,712.94 × 80,265.12
  4. Step 4: Simplify right side
    269,855.74x = 32,484,332,694.65
  5. Step 5: Solve for x
    x = 32,484,332,694.65/269,855.74
  6. Step 6: Final answer
    x = 120,376.66

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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.