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Finding the Fourth Proportional to 360.70, 500.32 and 351.22

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Solution

The fourth proportional to 360.70, 500.32 and 351.22 is: 487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.70 : 500.32 = 351.22 : x
  2. Step 2: Convert to fraction form
    360.70/500.32 = 351.22/x
  3. Step 3: Cross multiply
    360.70x = 500.32 × 351.22
  4. Step 4: Simplify right side
    360.70x = 175,722.39
  5. Step 5: Solve for x
    x = 175,722.39/360.70
  6. Step 6: Final answer
    x = 487.17

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.