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Finding the Fourth Proportional to 370.38, 556.20 and 297.48

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Solution

The fourth proportional to 370.38, 556.20 and 297.48 is: 446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.38 : 556.20 = 297.48 : x
  2. Step 2: Convert to fraction form
    370.38/556.20 = 297.48/x
  3. Step 3: Cross multiply
    370.38x = 556.20 × 297.48
  4. Step 4: Simplify right side
    370.38x = 165,458.38
  5. Step 5: Solve for x
    x = 165,458.38/370.38
  6. Step 6: Final answer
    x = 446.73

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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.