Home / 205,972.90-308,959.35-161,736.10

Finding the Fourth Proportional to 205,972.90, 308,959.35 and 161,736.10

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Solution

The fourth proportional to 205,972.90, 308,959.35 and 161,736.10 is: 242,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,972.90 : 308,959.35 = 161,736.10 : x
  2. Step 2: Convert to fraction form
    205,972.90/308,959.35 = 161,736.10/x
  3. Step 3: Cross multiply
    205,972.90x = 308,959.35 × 161,736.10
  4. Step 4: Simplify right side
    205,972.90x = 49,969,880,327.54
  5. Step 5: Solve for x
    x = 49,969,880,327.54/205,972.90
  6. Step 6: Final answer
    x = 242,604.15

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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.