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Finding the Fourth Proportional to 631.67, 952.22 and 622.22

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Solution

The fourth proportional to 631.67, 952.22 and 622.22 is: 937.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.67 : 952.22 = 622.22 : x
  2. Step 2: Convert to fraction form
    631.67/952.22 = 622.22/x
  3. Step 3: Cross multiply
    631.67x = 952.22 × 622.22
  4. Step 4: Simplify right side
    631.67x = 592,482.46
  5. Step 5: Solve for x
    x = 592,482.46/631.67
  6. Step 6: Final answer
    x = 937.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.