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Finding the Fourth Proportional to 269,432.38, 404,217.21 and 79,899.67

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Solution

The fourth proportional to 269,432.38, 404,217.21 and 79,899.67 is: 119,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,432.38 : 404,217.21 = 79,899.67 : x
  2. Step 2: Convert to fraction form
    269,432.38/404,217.21 = 79,899.67/x
  3. Step 3: Cross multiply
    269,432.38x = 404,217.21 × 79,899.67
  4. Step 4: Simplify right side
    269,432.38x = 32,296,819,666.23
  5. Step 5: Solve for x
    x = 32,296,819,666.23/269,432.38
  6. Step 6: Final answer
    x = 119,869.85

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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.