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Finding the Fourth Proportional to 482.49, 724.19 and 222.77

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Solution

The fourth proportional to 482.49, 724.19 and 222.77 is: 334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.49 : 724.19 = 222.77 : x
  2. Step 2: Convert to fraction form
    482.49/724.19 = 222.77/x
  3. Step 3: Cross multiply
    482.49x = 724.19 × 222.77
  4. Step 4: Simplify right side
    482.49x = 161,328.50
  5. Step 5: Solve for x
    x = 161,328.50/482.49
  6. Step 6: Final answer
    x = 334.37

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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.