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Finding the Fourth Proportional to 269,751.80, 404,681.70 and 80,211.80

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Solution

The fourth proportional to 269,751.80, 404,681.70 and 80,211.80 is: 120,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,751.80 : 404,681.70 = 80,211.80 : x
  2. Step 2: Convert to fraction form
    269,751.80/404,681.70 = 80,211.80/x
  3. Step 3: Cross multiply
    269,751.80x = 404,681.70 × 80,211.80
  4. Step 4: Simplify right side
    269,751.80x = 32,460,247,584.06
  5. Step 5: Solve for x
    x = 32,460,247,584.06/269,751.80
  6. Step 6: Final answer
    x = 120,333.76

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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.