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Finding the Fourth Proportional to 562.39, 776.12 and 323.17

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Solution

The fourth proportional to 562.39, 776.12 and 323.17 is: 445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.39 : 776.12 = 323.17 : x
  2. Step 2: Convert to fraction form
    562.39/776.12 = 323.17/x
  3. Step 3: Cross multiply
    562.39x = 776.12 × 323.17
  4. Step 4: Simplify right side
    562.39x = 250,815.14
  5. Step 5: Solve for x
    x = 250,815.14/562.39
  6. Step 6: Final answer
    x = 445.98

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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.