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Finding the Fourth Proportional to 185.79, 277.29 and 170.30

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Solution

The fourth proportional to 185.79, 277.29 and 170.30 is: 254.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.79 : 277.29 = 170.30 : x
  2. Step 2: Convert to fraction form
    185.79/277.29 = 170.30/x
  3. Step 3: Cross multiply
    185.79x = 277.29 × 170.30
  4. Step 4: Simplify right side
    185.79x = 47,223.18
  5. Step 5: Solve for x
    x = 47,223.18/185.79
  6. Step 6: Final answer
    x = 254.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.