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Finding the Fourth Proportional to 204.32, 304.99 and 188.06

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Solution

The fourth proportional to 204.32, 304.99 and 188.06 is: 280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.32 : 304.99 = 188.06 : x
  2. Step 2: Convert to fraction form
    204.32/304.99 = 188.06/x
  3. Step 3: Cross multiply
    204.32x = 304.99 × 188.06
  4. Step 4: Simplify right side
    204.32x = 57,354.42
  5. Step 5: Solve for x
    x = 57,354.42/204.32
  6. Step 6: Final answer
    x = 280.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.