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Finding the Fourth Proportional to 259,086.18, 388,629.27 and 101,203.92

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Solution

The fourth proportional to 259,086.18, 388,629.27 and 101,203.92 is: 151,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,086.18 : 388,629.27 = 101,203.92 : x
  2. Step 2: Convert to fraction form
    259,086.18/388,629.27 = 101,203.92/x
  3. Step 3: Cross multiply
    259,086.18x = 388,629.27 × 101,203.92
  4. Step 4: Simplify right side
    259,086.18x = 39,330,804,326.16
  5. Step 5: Solve for x
    x = 39,330,804,326.16/259,086.18
  6. Step 6: Final answer
    x = 151,805.88

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1.5x scale

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.