Home / 327,429.43-491,203.64-135,304.33

Finding the Fourth Proportional to 327,429.43, 491,203.64 and 135,304.33

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Solution

The fourth proportional to 327,429.43, 491,203.64 and 135,304.33 is: 202,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,429.43 : 491,203.64 = 135,304.33 : x
  2. Step 2: Convert to fraction form
    327,429.43/491,203.64 = 135,304.33/x
  3. Step 3: Cross multiply
    327,429.43x = 491,203.64 × 135,304.33
  4. Step 4: Simplify right side
    327,429.43x = 66,461,979,403.76
  5. Step 5: Solve for x
    x = 66,461,979,403.76/327,429.43
  6. Step 6: Final answer
    x = 202,981.08

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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.