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Finding the Fourth Proportional to 1,016.48, 1,524.40 and 323.12

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Solution

The fourth proportional to 1,016.48, 1,524.40 and 323.12 is: 484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.48 : 1,524.40 = 323.12 : x
  2. Step 2: Convert to fraction form
    1,016.48/1,524.40 = 323.12/x
  3. Step 3: Cross multiply
    1,016.48x = 1,524.40 × 323.12
  4. Step 4: Simplify right side
    1,016.48x = 492,564.13
  5. Step 5: Solve for x
    x = 492,564.13/1,016.48
  6. Step 6: Final answer
    x = 484.58

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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.