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Finding the Fourth Proportional to 511.62, 706.16 and 324.96

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Solution

The fourth proportional to 511.62, 706.16 and 324.96 is: 448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.62 : 706.16 = 324.96 : x
  2. Step 2: Convert to fraction form
    511.62/706.16 = 324.96/x
  3. Step 3: Cross multiply
    511.62x = 706.16 × 324.96
  4. Step 4: Simplify right side
    511.62x = 229,472.13
  5. Step 5: Solve for x
    x = 229,472.13/511.62
  6. Step 6: Final answer
    x = 448.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.