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Finding the Fourth Proportional to 321,283.50, 443,404.92 and 185,348.10

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Solution

The fourth proportional to 321,283.50, 443,404.92 and 185,348.10 is: 255,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,283.50 : 443,404.92 = 185,348.10 : x
  2. Step 2: Convert to fraction form
    321,283.50/443,404.92 = 185,348.10/x
  3. Step 3: Cross multiply
    321,283.50x = 443,404.92 × 185,348.10
  4. Step 4: Simplify right side
    321,283.50x = 82,184,259,452.65
  5. Step 5: Solve for x
    x = 82,184,259,452.65/321,283.50
  6. Step 6: Final answer
    x = 255,799.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.