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Finding the Fourth Proportional to 536.64, 804.66 and 207.28

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Solution

The fourth proportional to 536.64, 804.66 and 207.28 is: 310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.64 : 804.66 = 207.28 : x
  2. Step 2: Convert to fraction form
    536.64/804.66 = 207.28/x
  3. Step 3: Cross multiply
    536.64x = 804.66 × 207.28
  4. Step 4: Simplify right side
    536.64x = 166,789.92
  5. Step 5: Solve for x
    x = 166,789.92/536.64
  6. Step 6: Final answer
    x = 310.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.