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Finding the Fourth Proportional to 204.36, 305.64 and 175.20

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Solution

The fourth proportional to 204.36, 305.64 and 175.20 is: 262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.36 : 305.64 = 175.20 : x
  2. Step 2: Convert to fraction form
    204.36/305.64 = 175.20/x
  3. Step 3: Cross multiply
    204.36x = 305.64 × 175.20
  4. Step 4: Simplify right side
    204.36x = 53,548.13
  5. Step 5: Solve for x
    x = 53,548.13/204.36
  6. Step 6: Final answer
    x = 262.03

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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.