Home / 323,739.10-485,608.65-199,150.30

Finding the Fourth Proportional to 323,739.10, 485,608.65 and 199,150.30

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Solution

The fourth proportional to 323,739.10, 485,608.65 and 199,150.30 is: 298,725.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,739.10 : 485,608.65 = 199,150.30 : x
  2. Step 2: Convert to fraction form
    323,739.10/485,608.65 = 199,150.30/x
  3. Step 3: Cross multiply
    323,739.10x = 485,608.65 × 199,150.30
  4. Step 4: Simplify right side
    323,739.10x = 96,709,108,330.10
  5. Step 5: Solve for x
    x = 96,709,108,330.10/323,739.10
  6. Step 6: Final answer
    x = 298,725.45

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Similar ratio
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1.5x scale

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.