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Finding the Fourth Proportional to 200.19, 275.56 and 174.27

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Solution

The fourth proportional to 200.19, 275.56 and 174.27 is: 239.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.19 : 275.56 = 174.27 : x
  2. Step 2: Convert to fraction form
    200.19/275.56 = 174.27/x
  3. Step 3: Cross multiply
    200.19x = 275.56 × 174.27
  4. Step 4: Simplify right side
    200.19x = 48,021.84
  5. Step 5: Solve for x
    x = 48,021.84/200.19
  6. Step 6: Final answer
    x = 239.88

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1.5x scale

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.