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Finding the Fourth Proportional to 305.50, 457.92 and 151.48

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Solution

The fourth proportional to 305.50, 457.92 and 151.48 is: 227.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.50 : 457.92 = 151.48 : x
  2. Step 2: Convert to fraction form
    305.50/457.92 = 151.48/x
  3. Step 3: Cross multiply
    305.50x = 457.92 × 151.48
  4. Step 4: Simplify right side
    305.50x = 69,365.72
  5. Step 5: Solve for x
    x = 69,365.72/305.50
  6. Step 6: Final answer
    x = 227.06

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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.