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Finding the Fourth Proportional to 350.24, 522.52 and 318.80

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Solution

The fourth proportional to 350.24, 522.52 and 318.80 is: 475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.24 : 522.52 = 318.80 : x
  2. Step 2: Convert to fraction form
    350.24/522.52 = 318.80/x
  3. Step 3: Cross multiply
    350.24x = 522.52 × 318.80
  4. Step 4: Simplify right side
    350.24x = 166,579.38
  5. Step 5: Solve for x
    x = 166,579.38/350.24
  6. Step 6: Final answer
    x = 475.61

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.