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Finding the Fourth Proportional to 200.94, 277.08 and 135.30

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Solution

The fourth proportional to 200.94, 277.08 and 135.30 is: 186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.94 : 277.08 = 135.30 : x
  2. Step 2: Convert to fraction form
    200.94/277.08 = 135.30/x
  3. Step 3: Cross multiply
    200.94x = 277.08 × 135.30
  4. Step 4: Simplify right side
    200.94x = 37,488.92
  5. Step 5: Solve for x
    x = 37,488.92/200.94
  6. Step 6: Final answer
    x = 186.57

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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.