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Finding the Fourth Proportional to 604.88, 907.42 and 239.68

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Solution

The fourth proportional to 604.88, 907.42 and 239.68 is: 359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.88 : 907.42 = 239.68 : x
  2. Step 2: Convert to fraction form
    604.88/907.42 = 239.68/x
  3. Step 3: Cross multiply
    604.88x = 907.42 × 239.68
  4. Step 4: Simplify right side
    604.88x = 217,490.43
  5. Step 5: Solve for x
    x = 217,490.43/604.88
  6. Step 6: Final answer
    x = 359.56

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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.