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Finding the Fourth Proportional to 199.77, 275.58 and 134.34

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Solution

The fourth proportional to 199.77, 275.58 and 134.34 is: 185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.77 : 275.58 = 134.34 : x
  2. Step 2: Convert to fraction form
    199.77/275.58 = 134.34/x
  3. Step 3: Cross multiply
    199.77x = 275.58 × 134.34
  4. Step 4: Simplify right side
    199.77x = 37,021.42
  5. Step 5: Solve for x
    x = 37,021.42/199.77
  6. Step 6: Final answer
    x = 185.32

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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.