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Finding the Fourth Proportional to 329,690.60, 494,147.10 and 171,837.80

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Solution

The fourth proportional to 329,690.60, 494,147.10 and 171,837.80 is: 257,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,690.60 : 494,147.10 = 171,837.80 : x
  2. Step 2: Convert to fraction form
    329,690.60/494,147.10 = 171,837.80/x
  3. Step 3: Cross multiply
    329,690.60x = 494,147.10 × 171,837.80
  4. Step 4: Simplify right side
    329,690.60x = 84,913,150,540.38
  5. Step 5: Solve for x
    x = 84,913,150,540.38/329,690.60
  6. Step 6: Final answer
    x = 257,554.05

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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.