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Finding the Fourth Proportional to 272.64, 375.84 and 214.32

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Solution

The fourth proportional to 272.64, 375.84 and 214.32 is: 295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.64 : 375.84 = 214.32 : x
  2. Step 2: Convert to fraction form
    272.64/375.84 = 214.32/x
  3. Step 3: Cross multiply
    272.64x = 375.84 × 214.32
  4. Step 4: Simplify right side
    272.64x = 80,550.03
  5. Step 5: Solve for x
    x = 80,550.03/272.64
  6. Step 6: Final answer
    x = 295.44

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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.