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Finding the Fourth Proportional to 336.98, 505.83 and 154.52

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Solution

The fourth proportional to 336.98, 505.83 and 154.52 is: 231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.98 : 505.83 = 154.52 : x
  2. Step 2: Convert to fraction form
    336.98/505.83 = 154.52/x
  3. Step 3: Cross multiply
    336.98x = 505.83 × 154.52
  4. Step 4: Simplify right side
    336.98x = 78,160.85
  5. Step 5: Solve for x
    x = 78,160.85/336.98
  6. Step 6: Final answer
    x = 231.95

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Why These Related Problems?

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