Home / 351,979.83-485,741.73-199,040.90

Finding the Fourth Proportional to 351,979.83, 485,741.73 and 199,040.90

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Solution

The fourth proportional to 351,979.83, 485,741.73 and 199,040.90 is: 274,681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,979.83 : 485,741.73 = 199,040.90 : x
  2. Step 2: Convert to fraction form
    351,979.83/485,741.73 = 199,040.90/x
  3. Step 3: Cross multiply
    351,979.83x = 485,741.73 × 199,040.90
  4. Step 4: Simplify right side
    351,979.83x = 96,682,468,678.05
  5. Step 5: Solve for x
    x = 96,682,468,678.05/351,979.83
  6. Step 6: Final answer
    x = 274,681.84

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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.