Home / 326,088.20-489,132.30-231,609.80

Finding the Fourth Proportional to 326,088.20, 489,132.30 and 231,609.80

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Solution

The fourth proportional to 326,088.20, 489,132.30 and 231,609.80 is: 347,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,088.20 : 489,132.30 = 231,609.80 : x
  2. Step 2: Convert to fraction form
    326,088.20/489,132.30 = 231,609.80/x
  3. Step 3: Cross multiply
    326,088.20x = 489,132.30 × 231,609.80
  4. Step 4: Simplify right side
    326,088.20x = 113,287,834,176.54
  5. Step 5: Solve for x
    x = 113,287,834,176.54/326,088.20
  6. Step 6: Final answer
    x = 347,414.70

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1.5x scale

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.