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Finding the Fourth Proportional to 269,363.80, 403,980.90 and 82,376.92

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Solution

The fourth proportional to 269,363.80, 403,980.90 and 82,376.92 is: 123,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,363.80 : 403,980.90 = 82,376.92 : x
  2. Step 2: Convert to fraction form
    269,363.80/403,980.90 = 82,376.92/x
  3. Step 3: Cross multiply
    269,363.80x = 403,980.90 × 82,376.92
  4. Step 4: Simplify right side
    269,363.80x = 33,278,702,280.83
  5. Step 5: Solve for x
    x = 33,278,702,280.83/269,363.80
  6. Step 6: Final answer
    x = 123,545.56

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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.