Home / 373,121.10-515,007.72-211,982.94

Finding the Fourth Proportional to 373,121.10, 515,007.72 and 211,982.94

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Solution

The fourth proportional to 373,121.10, 515,007.72 and 211,982.94 is: 292,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,121.10 : 515,007.72 = 211,982.94 : x
  2. Step 2: Convert to fraction form
    373,121.10/515,007.72 = 211,982.94/x
  3. Step 3: Cross multiply
    373,121.10x = 515,007.72 × 211,982.94
  4. Step 4: Simplify right side
    373,121.10x = 109,172,850,608.30
  5. Step 5: Solve for x
    x = 109,172,850,608.30/373,121.10
  6. Step 6: Final answer
    x = 292,593.61

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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.