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Finding the Fourth Proportional to 297.03, 445.38 and 134.56

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Solution

The fourth proportional to 297.03, 445.38 and 134.56 is: 201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.03 : 445.38 = 134.56 : x
  2. Step 2: Convert to fraction form
    297.03/445.38 = 134.56/x
  3. Step 3: Cross multiply
    297.03x = 445.38 × 134.56
  4. Step 4: Simplify right side
    297.03x = 59,931.14
  5. Step 5: Solve for x
    x = 59,931.14/297.03
  6. Step 6: Final answer
    x = 201.77

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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.