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Finding the Fourth Proportional to 297.20, 445.77 and 237.06

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Solution

The fourth proportional to 297.20, 445.77 and 237.06 is: 355.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.20 : 445.77 = 237.06 : x
  2. Step 2: Convert to fraction form
    297.20/445.77 = 237.06/x
  3. Step 3: Cross multiply
    297.20x = 445.77 × 237.06
  4. Step 4: Simplify right side
    297.20x = 105,674.24
  5. Step 5: Solve for x
    x = 105,674.24/297.20
  6. Step 6: Final answer
    x = 355.56

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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.