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Finding the Fourth Proportional to 626.12, 864.12 and 364.19

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Solution

The fourth proportional to 626.12, 864.12 and 364.19 is: 502.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.12 : 864.12 = 364.19 : x
  2. Step 2: Convert to fraction form
    626.12/864.12 = 364.19/x
  3. Step 3: Cross multiply
    626.12x = 864.12 × 364.19
  4. Step 4: Simplify right side
    626.12x = 314,699.54
  5. Step 5: Solve for x
    x = 314,699.54/626.12
  6. Step 6: Final answer
    x = 502.62

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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.