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Finding the Fourth Proportional to 604.54, 906.10 and 279.22

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Solution

The fourth proportional to 604.54, 906.10 and 279.22 is: 418.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.54 : 906.10 = 279.22 : x
  2. Step 2: Convert to fraction form
    604.54/906.10 = 279.22/x
  3. Step 3: Cross multiply
    604.54x = 906.10 × 279.22
  4. Step 4: Simplify right side
    604.54x = 253,001.24
  5. Step 5: Solve for x
    x = 253,001.24/604.54
  6. Step 6: Final answer
    x = 418.50

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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.