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Finding the Fourth Proportional to 604.69, 907.39 and 219.97

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Solution

The fourth proportional to 604.69, 907.39 and 219.97 is: 330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.69 : 907.39 = 219.97 : x
  2. Step 2: Convert to fraction form
    604.69/907.39 = 219.97/x
  3. Step 3: Cross multiply
    604.69x = 907.39 × 219.97
  4. Step 4: Simplify right side
    604.69x = 199,594.04
  5. Step 5: Solve for x
    x = 199,594.04/604.69
  6. Step 6: Final answer
    x = 330.08

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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.