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Finding the Fourth Proportional to 633.26, 950.49 and 390.26

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Solution

The fourth proportional to 633.26, 950.49 and 390.26 is: 585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.26 : 950.49 = 390.26 : x
  2. Step 2: Convert to fraction form
    633.26/950.49 = 390.26/x
  3. Step 3: Cross multiply
    633.26x = 950.49 × 390.26
  4. Step 4: Simplify right side
    633.26x = 370,938.23
  5. Step 5: Solve for x
    x = 370,938.23/633.26
  6. Step 6: Final answer
    x = 585.76

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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.