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Finding the Fourth Proportional to 484.33, 726.61 and 210.47

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Solution

The fourth proportional to 484.33, 726.61 and 210.47 is: 315.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.33 : 726.61 = 210.47 : x
  2. Step 2: Convert to fraction form
    484.33/726.61 = 210.47/x
  3. Step 3: Cross multiply
    484.33x = 726.61 × 210.47
  4. Step 4: Simplify right side
    484.33x = 152,925.97
  5. Step 5: Solve for x
    x = 152,925.97/484.33
  6. Step 6: Final answer
    x = 315.75

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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.