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Finding the Fourth Proportional to 336.57, 464.54 and 243.75

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Solution

The fourth proportional to 336.57, 464.54 and 243.75 is: 336.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.57 : 464.54 = 243.75 : x
  2. Step 2: Convert to fraction form
    336.57/464.54 = 243.75/x
  3. Step 3: Cross multiply
    336.57x = 464.54 × 243.75
  4. Step 4: Simplify right side
    336.57x = 113,230.41
  5. Step 5: Solve for x
    x = 113,230.41/336.57
  6. Step 6: Final answer
    x = 336.42

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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.