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Finding the Fourth Proportional to 353,367.36, 487,659.96 and 202,493.52

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Solution

The fourth proportional to 353,367.36, 487,659.96 and 202,493.52 is: 279,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,367.36 : 487,659.96 = 202,493.52 : x
  2. Step 2: Convert to fraction form
    353,367.36/487,659.96 = 202,493.52/x
  3. Step 3: Cross multiply
    353,367.36x = 487,659.96 × 202,493.52
  4. Step 4: Simplify right side
    353,367.36x = 98,747,981,863.46
  5. Step 5: Solve for x
    x = 98,747,981,863.46/353,367.36
  6. Step 6: Final answer
    x = 279,448.51

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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.