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Finding the Fourth Proportional to 378,659.00, 568,019.77 and 272,536.88

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Solution

The fourth proportional to 378,659.00, 568,019.77 and 272,536.88 is: 408,827.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,659.00 : 568,019.77 = 272,536.88 : x
  2. Step 2: Convert to fraction form
    378,659.00/568,019.77 = 272,536.88/x
  3. Step 3: Cross multiply
    378,659.00x = 568,019.77 × 272,536.88
  4. Step 4: Simplify right side
    378,659.00x = 154,806,332,372.68
  5. Step 5: Solve for x
    x = 154,806,332,372.68/378,659.00
  6. Step 6: Final answer
    x = 408,827.81

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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.