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Finding the Fourth Proportional to 370.21, 555.42 and 151.05

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Solution

The fourth proportional to 370.21, 555.42 and 151.05 is: 226.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.21 : 555.42 = 151.05 : x
  2. Step 2: Convert to fraction form
    370.21/555.42 = 151.05/x
  3. Step 3: Cross multiply
    370.21x = 555.42 × 151.05
  4. Step 4: Simplify right side
    370.21x = 83,894.54
  5. Step 5: Solve for x
    x = 83,894.54/370.21
  6. Step 6: Final answer
    x = 226.61

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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.