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Finding the Fourth Proportional to 326,673.28, 489,922.44 and 89,959.69

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Solution

The fourth proportional to 326,673.28, 489,922.44 and 89,959.69 is: 134,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,673.28 : 489,922.44 = 89,959.69 : x
  2. Step 2: Convert to fraction form
    326,673.28/489,922.44 = 89,959.69/x
  3. Step 3: Cross multiply
    326,673.28x = 489,922.44 × 89,959.69
  4. Step 4: Simplify right side
    326,673.28x = 44,073,270,826.44
  5. Step 5: Solve for x
    x = 44,073,270,826.44/326,673.28
  6. Step 6: Final answer
    x = 134,915.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.