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Finding the Fourth Proportional to 610.85, 842.96 and 348.84

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Solution

The fourth proportional to 610.85, 842.96 and 348.84 is: 481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.85 : 842.96 = 348.84 : x
  2. Step 2: Convert to fraction form
    610.85/842.96 = 348.84/x
  3. Step 3: Cross multiply
    610.85x = 842.96 × 348.84
  4. Step 4: Simplify right side
    610.85x = 294,056.42
  5. Step 5: Solve for x
    x = 294,056.42/610.85
  6. Step 6: Final answer
    x = 481.39

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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.