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Finding the Fourth Proportional to 482.60, 722.46 and 338.24

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Solution

The fourth proportional to 482.60, 722.46 and 338.24 is: 506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.60 : 722.46 = 338.24 : x
  2. Step 2: Convert to fraction form
    482.60/722.46 = 338.24/x
  3. Step 3: Cross multiply
    482.60x = 722.46 × 338.24
  4. Step 4: Simplify right side
    482.60x = 244,364.87
  5. Step 5: Solve for x
    x = 244,364.87/482.60
  6. Step 6: Final answer
    x = 506.35

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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.