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Finding the Fourth Proportional to 482.20, 723.36 and 157.48

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Solution

The fourth proportional to 482.20, 723.36 and 157.48 is: 236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.20 : 723.36 = 157.48 : x
  2. Step 2: Convert to fraction form
    482.20/723.36 = 157.48/x
  3. Step 3: Cross multiply
    482.20x = 723.36 × 157.48
  4. Step 4: Simplify right side
    482.20x = 113,914.73
  5. Step 5: Solve for x
    x = 113,914.73/482.20
  6. Step 6: Final answer
    x = 236.24

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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.