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Finding the Fourth Proportional to 363,805.39, 502,066.56 and 202,660.39

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Solution

The fourth proportional to 363,805.39, 502,066.56 and 202,660.39 is: 279,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,805.39 : 502,066.56 = 202,660.39 : x
  2. Step 2: Convert to fraction form
    363,805.39/502,066.56 = 202,660.39/x
  3. Step 3: Cross multiply
    363,805.39x = 502,066.56 × 202,660.39
  4. Step 4: Simplify right side
    363,805.39x = 101,749,004,855.56
  5. Step 5: Solve for x
    x = 101,749,004,855.56/363,805.39
  6. Step 6: Final answer
    x = 279,679.76

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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.