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Finding the Fourth Proportional to 321,323.31, 443,324.85 and 185,339.04

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Solution

The fourth proportional to 321,323.31, 443,324.85 and 185,339.04 is: 255,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,323.31 : 443,324.85 = 185,339.04 : x
  2. Step 2: Convert to fraction form
    321,323.31/443,324.85 = 185,339.04/x
  3. Step 3: Cross multiply
    321,323.31x = 443,324.85 × 185,339.04
  4. Step 4: Simplify right side
    321,323.31x = 82,165,402,107.14
  5. Step 5: Solve for x
    x = 82,165,402,107.14/321,323.31
  6. Step 6: Final answer
    x = 255,709.44

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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.