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Finding the Fourth Proportional to 339,996.02, 509,806.71 and 140,270.94

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Solution

The fourth proportional to 339,996.02, 509,806.71 and 140,270.94 is: 210,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,996.02 : 509,806.71 = 140,270.94 : x
  2. Step 2: Convert to fraction form
    339,996.02/509,806.71 = 140,270.94/x
  3. Step 3: Cross multiply
    339,996.02x = 509,806.71 × 140,270.94
  4. Step 4: Simplify right side
    339,996.02x = 71,511,066,430.01
  5. Step 5: Solve for x
    x = 71,511,066,430.01/339,996.02
  6. Step 6: Final answer
    x = 210,329.13

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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.