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Finding the Fourth Proportional to 608.26, 839.28 and 359.56

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Solution

The fourth proportional to 608.26, 839.28 and 359.56 is: 496.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.26 : 839.28 = 359.56 : x
  2. Step 2: Convert to fraction form
    608.26/839.28 = 359.56/x
  3. Step 3: Cross multiply
    608.26x = 839.28 × 359.56
  4. Step 4: Simplify right side
    608.26x = 301,771.52
  5. Step 5: Solve for x
    x = 301,771.52/608.26
  6. Step 6: Final answer
    x = 496.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.