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Finding the Fourth Proportional to 304.89, 457.03 and 122.23

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Solution

The fourth proportional to 304.89, 457.03 and 122.23 is: 183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.89 : 457.03 = 122.23 : x
  2. Step 2: Convert to fraction form
    304.89/457.03 = 122.23/x
  3. Step 3: Cross multiply
    304.89x = 457.03 × 122.23
  4. Step 4: Simplify right side
    304.89x = 55,862.78
  5. Step 5: Solve for x
    x = 55,862.78/304.89
  6. Step 6: Final answer
    x = 183.22

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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.