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Finding the Fourth Proportional to 575.44, 863.28 and 210.22

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Solution

The fourth proportional to 575.44, 863.28 and 210.22 is: 315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.44 : 863.28 = 210.22 : x
  2. Step 2: Convert to fraction form
    575.44/863.28 = 210.22/x
  3. Step 3: Cross multiply
    575.44x = 863.28 × 210.22
  4. Step 4: Simplify right side
    575.44x = 181,477.35
  5. Step 5: Solve for x
    x = 181,477.35/575.44
  6. Step 6: Final answer
    x = 315.37

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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.