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Finding the Fourth Proportional to 300,691.02, 450,556.75 and 220,356.69

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Solution

The fourth proportional to 300,691.02, 450,556.75 and 220,356.69 is: 330,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,691.02 : 450,556.75 = 220,356.69 : x
  2. Step 2: Convert to fraction form
    300,691.02/450,556.75 = 220,356.69/x
  3. Step 3: Cross multiply
    300,691.02x = 450,556.75 × 220,356.69
  4. Step 4: Simplify right side
    300,691.02x = 99,283,194,087.16
  5. Step 5: Solve for x
    x = 99,283,194,087.16/300,691.02
  6. Step 6: Final answer
    x = 330,183.44

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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.