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Finding the Fourth Proportional to 339,940.60, 509,910.90 and 227,966.20

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Solution

The fourth proportional to 339,940.60, 509,910.90 and 227,966.20 is: 341,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,940.60 : 509,910.90 = 227,966.20 : x
  2. Step 2: Convert to fraction form
    339,940.60/509,910.90 = 227,966.20/x
  3. Step 3: Cross multiply
    339,940.60x = 509,910.90 × 227,966.20
  4. Step 4: Simplify right side
    339,940.60x = 116,242,450,211.58
  5. Step 5: Solve for x
    x = 116,242,450,211.58/339,940.60
  6. Step 6: Final answer
    x = 341,949.30

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1.5x scale

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.