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Finding the Fourth Proportional to 321,532.49, 443,682.87 and 185,610.22

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Solution

The fourth proportional to 321,532.49, 443,682.87 and 185,610.22 is: 256,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,532.49 : 443,682.87 = 185,610.22 : x
  2. Step 2: Convert to fraction form
    321,532.49/443,682.87 = 185,610.22/x
  3. Step 3: Cross multiply
    321,532.49x = 443,682.87 × 185,610.22
  4. Step 4: Simplify right side
    321,532.49x = 82,352,073,305.69
  5. Step 5: Solve for x
    x = 82,352,073,305.69/321,532.49
  6. Step 6: Final answer
    x = 256,123.65

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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.