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Finding the Fourth Proportional to 339,479.37, 509,329.62 and 161,963.42

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Solution

The fourth proportional to 339,479.37, 509,329.62 and 161,963.42 is: 242,997.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,479.37 : 509,329.62 = 161,963.42 : x
  2. Step 2: Convert to fraction form
    339,479.37/509,329.62 = 161,963.42/x
  3. Step 3: Cross multiply
    339,479.37x = 509,329.62 × 161,963.42
  4. Step 4: Simplify right side
    339,479.37x = 82,492,764,615.85
  5. Step 5: Solve for x
    x = 82,492,764,615.85/339,479.37
  6. Step 6: Final answer
    x = 242,997.87

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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.