Home / 326,515.38-489,962.20-136,958.82

Finding the Fourth Proportional to 326,515.38, 489,962.20 and 136,958.82

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Solution

The fourth proportional to 326,515.38, 489,962.20 and 136,958.82 is: 205,517.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,515.38 : 489,962.20 = 136,958.82 : x
  2. Step 2: Convert to fraction form
    326,515.38/489,962.20 = 136,958.82/x
  3. Step 3: Cross multiply
    326,515.38x = 489,962.20 × 136,958.82
  4. Step 4: Simplify right side
    326,515.38x = 67,104,644,756.60
  5. Step 5: Solve for x
    x = 67,104,644,756.60/326,515.38
  6. Step 6: Final answer
    x = 205,517.56

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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.