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Finding the Fourth Proportional to 589.24, 813.22 and 356.36

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Solution

The fourth proportional to 589.24, 813.22 and 356.36 is: 491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.24 : 813.22 = 356.36 : x
  2. Step 2: Convert to fraction form
    589.24/813.22 = 356.36/x
  3. Step 3: Cross multiply
    589.24x = 813.22 × 356.36
  4. Step 4: Simplify right side
    589.24x = 289,799.08
  5. Step 5: Solve for x
    x = 289,799.08/589.24
  6. Step 6: Final answer
    x = 491.82

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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.