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Finding the Fourth Proportional to 347.34, 478.60 and 236.62

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Solution

The fourth proportional to 347.34, 478.60 and 236.62 is: 326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.34 : 478.60 = 236.62 : x
  2. Step 2: Convert to fraction form
    347.34/478.60 = 236.62/x
  3. Step 3: Cross multiply
    347.34x = 478.60 × 236.62
  4. Step 4: Simplify right side
    347.34x = 113,246.33
  5. Step 5: Solve for x
    x = 113,246.33/347.34
  6. Step 6: Final answer
    x = 326.04

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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.