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Finding the Fourth Proportional to 339,150.38, 468,029.34 and 211,899.78

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Solution

The fourth proportional to 339,150.38, 468,029.34 and 211,899.78 is: 292,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,150.38 : 468,029.34 = 211,899.78 : x
  2. Step 2: Convert to fraction form
    339,150.38/468,029.34 = 211,899.78/x
  3. Step 3: Cross multiply
    339,150.38x = 468,029.34 × 211,899.78
  4. Step 4: Simplify right side
    339,150.38x = 99,175,314,179.55
  5. Step 5: Solve for x
    x = 99,175,314,179.55/339,150.38
  6. Step 6: Final answer
    x = 292,422.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.