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Finding the Fourth Proportional to 482.16, 723.36 and 157.53

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Solution

The fourth proportional to 482.16, 723.36 and 157.53 is: 236.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.16 : 723.36 = 157.53 : x
  2. Step 2: Convert to fraction form
    482.16/723.36 = 157.53/x
  3. Step 3: Cross multiply
    482.16x = 723.36 × 157.53
  4. Step 4: Simplify right side
    482.16x = 113,950.90
  5. Step 5: Solve for x
    x = 113,950.90/482.16
  6. Step 6: Final answer
    x = 236.33

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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.