Home / 331,186.39-494,232.62-329,291.90

Finding the Fourth Proportional to 331,186.39, 494,232.62 and 329,291.90

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Solution

The fourth proportional to 331,186.39, 494,232.62 and 329,291.90 is: 491,405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,186.39 : 494,232.62 = 329,291.90 : x
  2. Step 2: Convert to fraction form
    331,186.39/494,232.62 = 329,291.90/x
  3. Step 3: Cross multiply
    331,186.39x = 494,232.62 × 329,291.90
  4. Step 4: Simplify right side
    331,186.39x = 162,746,798,069.80
  5. Step 5: Solve for x
    x = 162,746,798,069.80/331,186.39
  6. Step 6: Final answer
    x = 491,405.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.