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Finding the Fourth Proportional to 201.07, 277.39 and 176.43

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Solution

The fourth proportional to 201.07, 277.39 and 176.43 is: 243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.07 : 277.39 = 176.43 : x
  2. Step 2: Convert to fraction form
    201.07/277.39 = 176.43/x
  3. Step 3: Cross multiply
    201.07x = 277.39 × 176.43
  4. Step 4: Simplify right side
    201.07x = 48,939.92
  5. Step 5: Solve for x
    x = 48,939.92/201.07
  6. Step 6: Final answer
    x = 243.40

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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.