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Finding the Fourth Proportional to 604.63, 907.35 and 219.88

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Solution

The fourth proportional to 604.63, 907.35 and 219.88 is: 329.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.63 : 907.35 = 219.88 : x
  2. Step 2: Convert to fraction form
    604.63/907.35 = 219.88/x
  3. Step 3: Cross multiply
    604.63x = 907.35 × 219.88
  4. Step 4: Simplify right side
    604.63x = 199,502.48
  5. Step 5: Solve for x
    x = 199,502.48/604.63
  6. Step 6: Final answer
    x = 329.96

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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.