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Finding the Fourth Proportional to 321,532.31, 443,682.60 and 185,610.05

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Solution

The fourth proportional to 321,532.31, 443,682.60 and 185,610.05 is: 256,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,532.31 : 443,682.60 = 185,610.05 : x
  2. Step 2: Convert to fraction form
    321,532.31/443,682.60 = 185,610.05/x
  3. Step 3: Cross multiply
    321,532.31x = 443,682.60 × 185,610.05
  4. Step 4: Simplify right side
    321,532.31x = 82,351,947,351.72
  5. Step 5: Solve for x
    x = 82,351,947,351.72/321,532.31
  6. Step 6: Final answer
    x = 256,123.40

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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.