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Finding the Fourth Proportional to 361,991.79, 499,556.88 and 200,840.85

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Solution

The fourth proportional to 361,991.79, 499,556.88 and 200,840.85 is: 277,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,991.79 : 499,556.88 = 200,840.85 : x
  2. Step 2: Convert to fraction form
    361,991.79/499,556.88 = 200,840.85/x
  3. Step 3: Cross multiply
    361,991.79x = 499,556.88 × 200,840.85
  4. Step 4: Simplify right side
    361,991.79x = 100,331,428,402.55
  5. Step 5: Solve for x
    x = 100,331,428,402.55/361,991.79
  6. Step 6: Final answer
    x = 277,164.93

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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.