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Finding the Fourth Proportional to 336.70, 505.08 and 120.34

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Solution

The fourth proportional to 336.70, 505.08 and 120.34 is: 180.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.70 : 505.08 = 120.34 : x
  2. Step 2: Convert to fraction form
    336.70/505.08 = 120.34/x
  3. Step 3: Cross multiply
    336.70x = 505.08 × 120.34
  4. Step 4: Simplify right side
    336.70x = 60,781.33
  5. Step 5: Solve for x
    x = 60,781.33/336.70
  6. Step 6: Final answer
    x = 180.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.