Home / 378,739.38-568,865.70-236,837.10

Finding the Fourth Proportional to 378,739.38, 568,865.70 and 236,837.10

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Solution

The fourth proportional to 378,739.38, 568,865.70 and 236,837.10 is: 355,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,739.38 : 568,865.70 = 236,837.10 : x
  2. Step 2: Convert to fraction form
    378,739.38/568,865.70 = 236,837.10/x
  3. Step 3: Cross multiply
    378,739.38x = 568,865.70 × 236,837.10
  4. Step 4: Simplify right side
    378,739.38x = 134,728,502,677.47
  5. Step 5: Solve for x
    x = 134,728,502,677.47/378,739.38
  6. Step 6: Final answer
    x = 355,728.79

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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.