Home / 351,565.20-485,189.82-198,631.44

Finding the Fourth Proportional to 351,565.20, 485,189.82 and 198,631.44

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Solution

The fourth proportional to 351,565.20, 485,189.82 and 198,631.44 is: 274,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,565.20 : 485,189.82 = 198,631.44 : x
  2. Step 2: Convert to fraction form
    351,565.20/485,189.82 = 198,631.44/x
  3. Step 3: Cross multiply
    351,565.20x = 485,189.82 × 198,631.44
  4. Step 4: Simplify right side
    351,565.20x = 96,373,952,619.94
  5. Step 5: Solve for x
    x = 96,373,952,619.94/351,565.20
  6. Step 6: Final answer
    x = 274,128.25

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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.