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Finding the Fourth Proportional to 339,129.56, 508,689.16 and 114,647.69

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Solution

The fourth proportional to 339,129.56, 508,689.16 and 114,647.69 is: 171,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,129.56 : 508,689.16 = 114,647.69 : x
  2. Step 2: Convert to fraction form
    339,129.56/508,689.16 = 114,647.69/x
  3. Step 3: Cross multiply
    339,129.56x = 508,689.16 × 114,647.69
  4. Step 4: Simplify right side
    339,129.56x = 58,320,037,122.04
  5. Step 5: Solve for x
    x = 58,320,037,122.04/339,129.56
  6. Step 6: Final answer
    x = 171,969.78

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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.