Home / 274,921.80-411,576.30-205,110.60

Finding the Fourth Proportional to 274,921.80, 411,576.30 and 205,110.60

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Solution

The fourth proportional to 274,921.80, 411,576.30 and 205,110.60 is: 307,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,921.80 : 411,576.30 = 205,110.60 : x
  2. Step 2: Convert to fraction form
    274,921.80/411,576.30 = 205,110.60/x
  3. Step 3: Cross multiply
    274,921.80x = 411,576.30 × 205,110.60
  4. Step 4: Simplify right side
    274,921.80x = 84,418,661,838.78
  5. Step 5: Solve for x
    x = 84,418,661,838.78/274,921.80
  6. Step 6: Final answer
    x = 307,064.27

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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.