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Finding the Fourth Proportional to 469.40, 703.71 and 222.46

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Solution

The fourth proportional to 469.40, 703.71 and 222.46 is: 333.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.40 : 703.71 = 222.46 : x
  2. Step 2: Convert to fraction form
    469.40/703.71 = 222.46/x
  3. Step 3: Cross multiply
    469.40x = 703.71 × 222.46
  4. Step 4: Simplify right side
    469.40x = 156,550.83
  5. Step 5: Solve for x
    x = 156,550.83/469.40
  6. Step 6: Final answer
    x = 333.51

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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.