Home / 339,731.01-509,222.85-139,942.43

Finding the Fourth Proportional to 339,731.01, 509,222.85 and 139,942.43

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Solution

The fourth proportional to 339,731.01, 509,222.85 and 139,942.43 is: 209,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,731.01 : 509,222.85 = 139,942.43 : x
  2. Step 2: Convert to fraction form
    339,731.01/509,222.85 = 139,942.43/x
  3. Step 3: Cross multiply
    339,731.01x = 509,222.85 × 139,942.43
  4. Step 4: Simplify right side
    339,731.01x = 71,261,885,530.77
  5. Step 5: Solve for x
    x = 71,261,885,530.77/339,731.01
  6. Step 6: Final answer
    x = 209,759.73

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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.