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Finding the Fourth Proportional to 339,330.60, 508,882.87 and 136,874.42

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Solution

The fourth proportional to 339,330.60, 508,882.87 and 136,874.42 is: 205,266.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,330.60 : 508,882.87 = 136,874.42 : x
  2. Step 2: Convert to fraction form
    339,330.60/508,882.87 = 136,874.42/x
  3. Step 3: Cross multiply
    339,330.60x = 508,882.87 × 136,874.42
  4. Step 4: Simplify right side
    339,330.60x = 69,653,045,476.96
  5. Step 5: Solve for x
    x = 69,653,045,476.96/339,330.60
  6. Step 6: Final answer
    x = 205,266.03

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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.