Home / 326,183.76-489,465.18-136,627.36

Finding the Fourth Proportional to 326,183.76, 489,465.18 and 136,627.36

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Solution

The fourth proportional to 326,183.76, 489,465.18 and 136,627.36 is: 205,020.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,183.76 : 489,465.18 = 136,627.36 : x
  2. Step 2: Convert to fraction form
    326,183.76/489,465.18 = 136,627.36/x
  3. Step 3: Cross multiply
    326,183.76x = 489,465.18 × 136,627.36
  4. Step 4: Simplify right side
    326,183.76x = 66,874,334,131.66
  5. Step 5: Solve for x
    x = 66,874,334,131.66/326,183.76
  6. Step 6: Final answer
    x = 205,020.43

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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.