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Finding the Fourth Proportional to 297.59, 445.92 and 189.05

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Solution

The fourth proportional to 297.59, 445.92 and 189.05 is: 283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.59 : 445.92 = 189.05 : x
  2. Step 2: Convert to fraction form
    297.59/445.92 = 189.05/x
  3. Step 3: Cross multiply
    297.59x = 445.92 × 189.05
  4. Step 4: Simplify right side
    297.59x = 84,298.95
  5. Step 5: Solve for x
    x = 84,298.95/297.59
  6. Step 6: Final answer
    x = 283.28

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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.