Home / 326,512.60-489,164.10-185,853.40

Finding the Fourth Proportional to 326,512.60, 489,164.10 and 185,853.40

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Solution

The fourth proportional to 326,512.60, 489,164.10 and 185,853.40 is: 278,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,512.60 : 489,164.10 = 185,853.40 : x
  2. Step 2: Convert to fraction form
    326,512.60/489,164.10 = 185,853.40/x
  3. Step 3: Cross multiply
    326,512.60x = 489,164.10 × 185,853.40
  4. Step 4: Simplify right side
    326,512.60x = 90,912,811,142.94
  5. Step 5: Solve for x
    x = 90,912,811,142.94/326,512.60
  6. Step 6: Final answer
    x = 278,435.84

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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.