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Finding the Fourth Proportional to 608.27, 839.31 and 359.50

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Solution

The fourth proportional to 608.27, 839.31 and 359.50 is: 496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.27 : 839.31 = 359.50 : x
  2. Step 2: Convert to fraction form
    608.27/839.31 = 359.50/x
  3. Step 3: Cross multiply
    608.27x = 839.31 × 359.50
  4. Step 4: Simplify right side
    608.27x = 301,731.95
  5. Step 5: Solve for x
    x = 301,731.95/608.27
  6. Step 6: Final answer
    x = 496.05

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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.