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Finding the Fourth Proportional to 329,659.34, 494,892.69 and 217,433.42

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Solution

The fourth proportional to 329,659.34, 494,892.69 and 217,433.42 is: 326,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,659.34 : 494,892.69 = 217,433.42 : x
  2. Step 2: Convert to fraction form
    329,659.34/494,892.69 = 217,433.42/x
  3. Step 3: Cross multiply
    329,659.34x = 494,892.69 × 217,433.42
  4. Step 4: Simplify right side
    329,659.34x = 107,606,210,119.70
  5. Step 5: Solve for x
    x = 107,606,210,119.70/329,659.34
  6. Step 6: Final answer
    x = 326,416.39

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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.