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Finding the Fourth Proportional to 200.80, 277.18 and 184.40

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Solution

The fourth proportional to 200.80, 277.18 and 184.40 is: 254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.80 : 277.18 = 184.40 : x
  2. Step 2: Convert to fraction form
    200.80/277.18 = 184.40/x
  3. Step 3: Cross multiply
    200.80x = 277.18 × 184.40
  4. Step 4: Simplify right side
    200.80x = 51,111.99
  5. Step 5: Solve for x
    x = 51,111.99/200.80
  6. Step 6: Final answer
    x = 254.54

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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.