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Finding the Fourth Proportional to 628.91, 868.01 and 367.01

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Solution

The fourth proportional to 628.91, 868.01 and 367.01 is: 506.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.91 : 868.01 = 367.01 : x
  2. Step 2: Convert to fraction form
    628.91/868.01 = 367.01/x
  3. Step 3: Cross multiply
    628.91x = 868.01 × 367.01
  4. Step 4: Simplify right side
    628.91x = 318,562.18
  5. Step 5: Solve for x
    x = 318,562.18/628.91
  6. Step 6: Final answer
    x = 506.53

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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.