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Finding the Fourth Proportional to 608.10, 839.33 and 359.63

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Solution

The fourth proportional to 608.10, 839.33 and 359.63 is: 496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.10 : 839.33 = 359.63 : x
  2. Step 2: Convert to fraction form
    608.10/839.33 = 359.63/x
  3. Step 3: Cross multiply
    608.10x = 839.33 × 359.63
  4. Step 4: Simplify right side
    608.10x = 301,848.25
  5. Step 5: Solve for x
    x = 301,848.25/608.10
  6. Step 6: Final answer
    x = 496.38

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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.