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Finding the Fourth Proportional to 339,673.56, 509,648.67 and 171,242.43

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Solution

The fourth proportional to 339,673.56, 509,648.67 and 171,242.43 is: 256,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,673.56 : 509,648.67 = 171,242.43 : x
  2. Step 2: Convert to fraction form
    339,673.56/509,648.67 = 171,242.43/x
  3. Step 3: Cross multiply
    339,673.56x = 509,648.67 × 171,242.43
  4. Step 4: Simplify right side
    339,673.56x = 87,273,476,697.07
  5. Step 5: Solve for x
    x = 87,273,476,697.07/339,673.56
  6. Step 6: Final answer
    x = 256,933.38

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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.