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Finding the Fourth Proportional to 297.30, 445.96 and 104.93

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Solution

The fourth proportional to 297.30, 445.96 and 104.93 is: 157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.30 : 445.96 = 104.93 : x
  2. Step 2: Convert to fraction form
    297.30/445.96 = 104.93/x
  3. Step 3: Cross multiply
    297.30x = 445.96 × 104.93
  4. Step 4: Simplify right side
    297.30x = 46,794.28
  5. Step 5: Solve for x
    x = 46,794.28/297.30
  6. Step 6: Final answer
    x = 157.40

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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.