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Finding the Fourth Proportional to 482.73, 722.81 and 328.96

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Solution

The fourth proportional to 482.73, 722.81 and 328.96 is: 492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.73 : 722.81 = 328.96 : x
  2. Step 2: Convert to fraction form
    482.73/722.81 = 328.96/x
  3. Step 3: Cross multiply
    482.73x = 722.81 × 328.96
  4. Step 4: Simplify right side
    482.73x = 237,777.30
  5. Step 5: Solve for x
    x = 237,777.30/482.73
  6. Step 6: Final answer
    x = 492.57

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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.