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Finding the Fourth Proportional to 297.24, 445.98 and 188.88

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Solution

The fourth proportional to 297.24, 445.98 and 188.88 is: 283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.24 : 445.98 = 188.88 : x
  2. Step 2: Convert to fraction form
    297.24/445.98 = 188.88/x
  3. Step 3: Cross multiply
    297.24x = 445.98 × 188.88
  4. Step 4: Simplify right side
    297.24x = 84,236.70
  5. Step 5: Solve for x
    x = 84,236.70/297.24
  6. Step 6: Final answer
    x = 283.40

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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.