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Finding the Fourth Proportional to 321,067.51, 443,371.00 and 240,354.91

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Solution

The fourth proportional to 321,067.51, 443,371.00 and 240,354.91 is: 331,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,067.51 : 443,371.00 = 240,354.91 : x
  2. Step 2: Convert to fraction form
    321,067.51/443,371.00 = 240,354.91/x
  3. Step 3: Cross multiply
    321,067.51x = 443,371.00 × 240,354.91
  4. Step 4: Simplify right side
    321,067.51x = 106,566,397,205.60
  5. Step 5: Solve for x
    x = 106,566,397,205.60/321,067.51
  6. Step 6: Final answer
    x = 331,912.74

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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.