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Finding the Fourth Proportional to 365.74, 504.66 and 208.32

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Solution

The fourth proportional to 365.74, 504.66 and 208.32 is: 287.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.74 : 504.66 = 208.32 : x
  2. Step 2: Convert to fraction form
    365.74/504.66 = 208.32/x
  3. Step 3: Cross multiply
    365.74x = 504.66 × 208.32
  4. Step 4: Simplify right side
    365.74x = 105,128.25
  5. Step 5: Solve for x
    x = 105,128.25/365.74
  6. Step 6: Final answer
    x = 287.44

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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.