Home / 325,942.08-489,052.56-136,446.72

Finding the Fourth Proportional to 325,942.08, 489,052.56 and 136,446.72

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Solution

The fourth proportional to 325,942.08, 489,052.56 and 136,446.72 is: 204,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,942.08 : 489,052.56 = 136,446.72 : x
  2. Step 2: Convert to fraction form
    325,942.08/489,052.56 = 136,446.72/x
  3. Step 3: Cross multiply
    325,942.08x = 489,052.56 × 136,446.72
  4. Step 4: Simplify right side
    325,942.08x = 66,729,617,719.60
  5. Step 5: Solve for x
    x = 66,729,617,719.60/325,942.08
  6. Step 6: Final answer
    x = 204,728.45

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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.