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Finding the Fourth Proportional to 217,796.73, 326,707.38 and 77,555.36

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Solution

The fourth proportional to 217,796.73, 326,707.38 and 77,555.36 is: 116,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,796.73 : 326,707.38 = 77,555.36 : x
  2. Step 2: Convert to fraction form
    217,796.73/326,707.38 = 77,555.36/x
  3. Step 3: Cross multiply
    217,796.73x = 326,707.38 × 77,555.36
  4. Step 4: Simplify right side
    217,796.73x = 25,337,906,837.02
  5. Step 5: Solve for x
    x = 25,337,906,837.02/217,796.73
  6. Step 6: Final answer
    x = 116,337.41

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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.