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Finding the Fourth Proportional to 484.33, 726.45 and 155.30

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Solution

The fourth proportional to 484.33, 726.45 and 155.30 is: 232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.33 : 726.45 = 155.30 : x
  2. Step 2: Convert to fraction form
    484.33/726.45 = 155.30/x
  3. Step 3: Cross multiply
    484.33x = 726.45 × 155.30
  4. Step 4: Simplify right side
    484.33x = 112,816.39
  5. Step 5: Solve for x
    x = 112,816.39/484.33
  6. Step 6: Final answer
    x = 232.93

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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.