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Finding the Fourth Proportional to 626.16, 863.88 and 364.12

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Solution

The fourth proportional to 626.16, 863.88 and 364.12 is: 502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.16 : 863.88 = 364.12 : x
  2. Step 2: Convert to fraction form
    626.16/863.88 = 364.12/x
  3. Step 3: Cross multiply
    626.16x = 863.88 × 364.12
  4. Step 4: Simplify right side
    626.16x = 314,555.99
  5. Step 5: Solve for x
    x = 314,555.99/626.16
  6. Step 6: Final answer
    x = 502.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.