Home / 300,121.30-414,203.13-172,821.70

Finding the Fourth Proportional to 300,121.30, 414,203.13 and 172,821.70

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Solution

The fourth proportional to 300,121.30, 414,203.13 and 172,821.70 is: 238,514.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,121.30 : 414,203.13 = 172,821.70 : x
  2. Step 2: Convert to fraction form
    300,121.30/414,203.13 = 172,821.70/x
  3. Step 3: Cross multiply
    300,121.30x = 414,203.13 × 172,821.70
  4. Step 4: Simplify right side
    300,121.30x = 71,583,289,071.92
  5. Step 5: Solve for x
    x = 71,583,289,071.92/300,121.30
  6. Step 6: Final answer
    x = 238,514.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.