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Finding the Fourth Proportional to 269,859.74, 404,718.93 and 80,269.13

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Solution

The fourth proportional to 269,859.74, 404,718.93 and 80,269.13 is: 120,382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,859.74 : 404,718.93 = 80,269.13 : x
  2. Step 2: Convert to fraction form
    269,859.74/404,718.93 = 80,269.13/x
  3. Step 3: Cross multiply
    269,859.74x = 404,718.93 × 80,269.13
  4. Step 4: Simplify right side
    269,859.74x = 32,486,436,405.63
  5. Step 5: Solve for x
    x = 32,486,436,405.63/269,859.74
  6. Step 6: Final answer
    x = 120,382.67

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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.