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Finding the Fourth Proportional to 562.10, 843.41 and 215.32

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Solution

The fourth proportional to 562.10, 843.41 and 215.32 is: 323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.10 : 843.41 = 215.32 : x
  2. Step 2: Convert to fraction form
    562.10/843.41 = 215.32/x
  3. Step 3: Cross multiply
    562.10x = 843.41 × 215.32
  4. Step 4: Simplify right side
    562.10x = 181,597.75
  5. Step 5: Solve for x
    x = 181,597.75/562.10
  6. Step 6: Final answer
    x = 323.07

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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.