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Finding the Fourth Proportional to 365.97, 504.85 and 210.63

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Solution

The fourth proportional to 365.97, 504.85 and 210.63 is: 290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.97 : 504.85 = 210.63 : x
  2. Step 2: Convert to fraction form
    365.97/504.85 = 210.63/x
  3. Step 3: Cross multiply
    365.97x = 504.85 × 210.63
  4. Step 4: Simplify right side
    365.97x = 106,336.56
  5. Step 5: Solve for x
    x = 106,336.56/365.97
  6. Step 6: Final answer
    x = 290.56

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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.