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Finding the Fourth Proportional to 185.64, 277.74 and 155.22

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Solution

The fourth proportional to 185.64, 277.74 and 155.22 is: 232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.64 : 277.74 = 155.22 : x
  2. Step 2: Convert to fraction form
    185.64/277.74 = 155.22/x
  3. Step 3: Cross multiply
    185.64x = 277.74 × 155.22
  4. Step 4: Simplify right side
    185.64x = 43,110.80
  5. Step 5: Solve for x
    x = 43,110.80/185.64
  6. Step 6: Final answer
    x = 232.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.