Home / 339,936.71-509,966.62-140,145.89

Finding the Fourth Proportional to 339,936.71, 509,966.62 and 140,145.89

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Solution

The fourth proportional to 339,936.71, 509,966.62 and 140,145.89 is: 210,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,936.71 : 509,966.62 = 140,145.89 : x
  2. Step 2: Convert to fraction form
    339,936.71/509,966.62 = 140,145.89/x
  3. Step 3: Cross multiply
    339,936.71x = 509,966.62 × 140,145.89
  4. Step 4: Simplify right side
    339,936.71x = 71,469,722,929.99
  5. Step 5: Solve for x
    x = 71,469,722,929.99/339,936.71
  6. Step 6: Final answer
    x = 210,244.21

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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.