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Finding the Fourth Proportional to 259,086.23, 388,629.34 and 101,203.96

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Solution

The fourth proportional to 259,086.23, 388,629.34 and 101,203.96 is: 151,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,086.23 : 388,629.34 = 101,203.96 : x
  2. Step 2: Convert to fraction form
    259,086.23/388,629.34 = 101,203.96/x
  3. Step 3: Cross multiply
    259,086.23x = 388,629.34 × 101,203.96
  4. Step 4: Simplify right side
    259,086.23x = 39,330,828,180.19
  5. Step 5: Solve for x
    x = 39,330,828,180.19/259,086.23
  6. Step 6: Final answer
    x = 151,805.94

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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.