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Finding the Fourth Proportional to 311,871.30, 466,822.80 and 302,029.80

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Solution

The fourth proportional to 311,871.30, 466,822.80 and 302,029.80 is: 452,091.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,871.30 : 466,822.80 = 302,029.80 : x
  2. Step 2: Convert to fraction form
    311,871.30/466,822.80 = 302,029.80/x
  3. Step 3: Cross multiply
    311,871.30x = 466,822.80 × 302,029.80
  4. Step 4: Simplify right side
    311,871.30x = 140,994,396,919.44
  5. Step 5: Solve for x
    x = 140,994,396,919.44/311,871.30
  6. Step 6: Final answer
    x = 452,091.61

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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.