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Finding the Fourth Proportional to 482.88, 724.33 and 222.81

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Solution

The fourth proportional to 482.88, 724.33 and 222.81 is: 334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.88 : 724.33 = 222.81 : x
  2. Step 2: Convert to fraction form
    482.88/724.33 = 222.81/x
  3. Step 3: Cross multiply
    482.88x = 724.33 × 222.81
  4. Step 4: Simplify right side
    482.88x = 161,386.39
  5. Step 5: Solve for x
    x = 161,386.39/482.88
  6. Step 6: Final answer
    x = 334.21

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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.