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Finding the Fourth Proportional to 338,635.62, 467,633.31 and 217,986.28

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Solution

The fourth proportional to 338,635.62, 467,633.31 and 217,986.28 is: 301,024.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,635.62 : 467,633.31 = 217,986.28 : x
  2. Step 2: Convert to fraction form
    338,635.62/467,633.31 = 217,986.28/x
  3. Step 3: Cross multiply
    338,635.62x = 467,633.31 × 217,986.28
  4. Step 4: Simplify right side
    338,635.62x = 101,937,645,650.99
  5. Step 5: Solve for x
    x = 101,937,645,650.99/338,635.62
  6. Step 6: Final answer
    x = 301,024.58

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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.