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Finding the Fourth Proportional to 339,940.40, 468,840.12 and 237,930.80

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Solution

The fourth proportional to 339,940.40, 468,840.12 and 237,930.80 is: 328,150.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,940.40 : 468,840.12 = 237,930.80 : x
  2. Step 2: Convert to fraction form
    339,940.40/468,840.12 = 237,930.80/x
  3. Step 3: Cross multiply
    339,940.40x = 468,840.12 × 237,930.80
  4. Step 4: Simplify right side
    339,940.40x = 111,551,504,823.70
  5. Step 5: Solve for x
    x = 111,551,504,823.70/339,940.40
  6. Step 6: Final answer
    x = 328,150.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.