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Finding the Fourth Proportional to 482.26, 723.78 and 193.90

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Solution

The fourth proportional to 482.26, 723.78 and 193.90 is: 291.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.26 : 723.78 = 193.90 : x
  2. Step 2: Convert to fraction form
    482.26/723.78 = 193.90/x
  3. Step 3: Cross multiply
    482.26x = 723.78 × 193.90
  4. Step 4: Simplify right side
    482.26x = 140,340.94
  5. Step 5: Solve for x
    x = 140,340.94/482.26
  6. Step 6: Final answer
    x = 291.01

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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.