Home / 309,940.20-464,132.70-204,186.60

Finding the Fourth Proportional to 309,940.20, 464,132.70 and 204,186.60

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Solution

The fourth proportional to 309,940.20, 464,132.70 and 204,186.60 is: 305,767.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,940.20 : 464,132.70 = 204,186.60 : x
  2. Step 2: Convert to fraction form
    309,940.20/464,132.70 = 204,186.60/x
  3. Step 3: Cross multiply
    309,940.20x = 464,132.70 × 204,186.60
  4. Step 4: Simplify right side
    309,940.20x = 94,769,677,961.82
  5. Step 5: Solve for x
    x = 94,769,677,961.82/309,940.20
  6. Step 6: Final answer
    x = 305,767.62

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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.