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Finding the Fourth Proportional to 199.36, 300.55 and 167.50

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Solution

The fourth proportional to 199.36, 300.55 and 167.50 is: 252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.36 : 300.55 = 167.50 : x
  2. Step 2: Convert to fraction form
    199.36/300.55 = 167.50/x
  3. Step 3: Cross multiply
    199.36x = 300.55 × 167.50
  4. Step 4: Simplify right side
    199.36x = 50,342.13
  5. Step 5: Solve for x
    x = 50,342.13/199.36
  6. Step 6: Final answer
    x = 252.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.