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Finding the Fourth Proportional to 303,180.39, 455,086 and 223,308.54

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Solution

The fourth proportional to 303,180.39, 455,086 and 223,308.54 is: 335,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,180.39 : 455,086 = 223,308.54 : x
  2. Step 2: Convert to fraction form
    303,180.39/455,086 = 223,308.54/x
  3. Step 3: Cross multiply
    303,180.39x = 455,086 × 223,308.54
  4. Step 4: Simplify right side
    303,180.39x = 101,624,587,959.01
  5. Step 5: Solve for x
    x = 101,624,587,959.01/303,180.39
  6. Step 6: Final answer
    x = 335,195.13

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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.