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Finding the Fourth Proportional to 203.24, 280.02 and 188.36

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Solution

The fourth proportional to 203.24, 280.02 and 188.36 is: 259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.24 : 280.02 = 188.36 : x
  2. Step 2: Convert to fraction form
    203.24/280.02 = 188.36/x
  3. Step 3: Cross multiply
    203.24x = 280.02 × 188.36
  4. Step 4: Simplify right side
    203.24x = 52,744.57
  5. Step 5: Solve for x
    x = 52,744.57/203.24
  6. Step 6: Final answer
    x = 259.52

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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.