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Finding the Fourth Proportional to 608.01, 838.99 and 342.46

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Solution

The fourth proportional to 608.01, 838.99 and 342.46 is: 472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.01 : 838.99 = 342.46 : x
  2. Step 2: Convert to fraction form
    608.01/838.99 = 342.46/x
  3. Step 3: Cross multiply
    608.01x = 838.99 × 342.46
  4. Step 4: Simplify right side
    608.01x = 287,321.99
  5. Step 5: Solve for x
    x = 287,321.99/608.01
  6. Step 6: Final answer
    x = 472.56

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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.