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Finding the Fourth Proportional to 610.20, 842.07 and 344.65

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Solution

The fourth proportional to 610.20, 842.07 and 344.65 is: 475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.20 : 842.07 = 344.65 : x
  2. Step 2: Convert to fraction form
    610.20/842.07 = 344.65/x
  3. Step 3: Cross multiply
    610.20x = 842.07 × 344.65
  4. Step 4: Simplify right side
    610.20x = 290,219.43
  5. Step 5: Solve for x
    x = 290,219.43/610.20
  6. Step 6: Final answer
    x = 475.61

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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.