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Finding the Fourth Proportional to 135,326.80, 202,990.20 and 35,486.80

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Solution

The fourth proportional to 135,326.80, 202,990.20 and 35,486.80 is: 53,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,326.80 : 202,990.20 = 35,486.80 : x
  2. Step 2: Convert to fraction form
    135,326.80/202,990.20 = 35,486.80/x
  3. Step 3: Cross multiply
    135,326.80x = 202,990.20 × 35,486.80
  4. Step 4: Simplify right side
    135,326.80x = 7,203,472,629.36
  5. Step 5: Solve for x
    x = 7,203,472,629.36/135,326.80
  6. Step 6: Final answer
    x = 53,230.20

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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.