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Finding the Fourth Proportional to 482.16, 723.35 and 157.52

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Solution

The fourth proportional to 482.16, 723.35 and 157.52 is: 236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.16 : 723.35 = 157.52 : x
  2. Step 2: Convert to fraction form
    482.16/723.35 = 157.52/x
  3. Step 3: Cross multiply
    482.16x = 723.35 × 157.52
  4. Step 4: Simplify right side
    482.16x = 113,942.09
  5. Step 5: Solve for x
    x = 113,942.09/482.16
  6. Step 6: Final answer
    x = 236.32

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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.