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Finding the Fourth Proportional to 469.47, 703.83 and 225.75

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Solution

The fourth proportional to 469.47, 703.83 and 225.75 is: 338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.47 : 703.83 = 225.75 : x
  2. Step 2: Convert to fraction form
    469.47/703.83 = 225.75/x
  3. Step 3: Cross multiply
    469.47x = 703.83 × 225.75
  4. Step 4: Simplify right side
    469.47x = 158,889.62
  5. Step 5: Solve for x
    x = 158,889.62/469.47
  6. Step 6: Final answer
    x = 338.44

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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.