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Finding the Fourth Proportional to 339,381.43, 509,182.88 and 161,865.37

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Solution

The fourth proportional to 339,381.43, 509,182.88 and 161,865.37 is: 242,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,381.43 : 509,182.88 = 161,865.37 : x
  2. Step 2: Convert to fraction form
    339,381.43/509,182.88 = 161,865.37/x
  3. Step 3: Cross multiply
    339,381.43x = 509,182.88 × 161,865.37
  4. Step 4: Simplify right side
    339,381.43x = 82,419,075,268.87
  5. Step 5: Solve for x
    x = 82,419,075,268.87/339,381.43
  6. Step 6: Final answer
    x = 242,850.87

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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.