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Finding the Fourth Proportional to 365.27, 504.18 and 254.70

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Solution

The fourth proportional to 365.27, 504.18 and 254.70 is: 351.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.27 : 504.18 = 254.70 : x
  2. Step 2: Convert to fraction form
    365.27/504.18 = 254.70/x
  3. Step 3: Cross multiply
    365.27x = 504.18 × 254.70
  4. Step 4: Simplify right side
    365.27x = 128,414.65
  5. Step 5: Solve for x
    x = 128,414.65/365.27
  6. Step 6: Final answer
    x = 351.57

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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.