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Finding the Fourth Proportional to 219,460.40, 329,190.60 and 207,796.40

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Solution

The fourth proportional to 219,460.40, 329,190.60 and 207,796.40 is: 311,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,460.40 : 329,190.60 = 207,796.40 : x
  2. Step 2: Convert to fraction form
    219,460.40/329,190.60 = 207,796.40/x
  3. Step 3: Cross multiply
    219,460.40x = 329,190.60 × 207,796.40
  4. Step 4: Simplify right side
    219,460.40x = 68,404,621,593.84
  5. Step 5: Solve for x
    x = 68,404,621,593.84/219,460.40
  6. Step 6: Final answer
    x = 311,694.60

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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.