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Finding the Fourth Proportional to 415.67, 623.97 and 233.28

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Solution

The fourth proportional to 415.67, 623.97 and 233.28 is: 350.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.67 : 623.97 = 233.28 : x
  2. Step 2: Convert to fraction form
    415.67/623.97 = 233.28/x
  3. Step 3: Cross multiply
    415.67x = 623.97 × 233.28
  4. Step 4: Simplify right side
    415.67x = 145,559.72
  5. Step 5: Solve for x
    x = 145,559.72/415.67
  6. Step 6: Final answer
    x = 350.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.