Home / 326,520.60-489,176.10-185,861.40

Finding the Fourth Proportional to 326,520.60, 489,176.10 and 185,861.40

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Solution

The fourth proportional to 326,520.60, 489,176.10 and 185,861.40 is: 278,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,520.60 : 489,176.10 = 185,861.40 : x
  2. Step 2: Convert to fraction form
    326,520.60/489,176.10 = 185,861.40/x
  3. Step 3: Cross multiply
    326,520.60x = 489,176.10 × 185,861.40
  4. Step 4: Simplify right side
    326,520.60x = 90,918,954,792.54
  5. Step 5: Solve for x
    x = 90,918,954,792.54/326,520.60
  6. Step 6: Final answer
    x = 278,447.84

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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.