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Finding the Fourth Proportional to 591.28, 815.96 and 367.16

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Solution

The fourth proportional to 591.28, 815.96 and 367.16 is: 506.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.28 : 815.96 = 367.16 : x
  2. Step 2: Convert to fraction form
    591.28/815.96 = 367.16/x
  3. Step 3: Cross multiply
    591.28x = 815.96 × 367.16
  4. Step 4: Simplify right side
    591.28x = 299,587.87
  5. Step 5: Solve for x
    x = 299,587.87/591.28
  6. Step 6: Final answer
    x = 506.68

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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.