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Finding the Fourth Proportional to 620.60, 930.96 and 295.65

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Solution

The fourth proportional to 620.60, 930.96 and 295.65 is: 443.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.60 : 930.96 = 295.65 : x
  2. Step 2: Convert to fraction form
    620.60/930.96 = 295.65/x
  3. Step 3: Cross multiply
    620.60x = 930.96 × 295.65
  4. Step 4: Simplify right side
    620.60x = 275,238.32
  5. Step 5: Solve for x
    x = 275,238.32/620.60
  6. Step 6: Final answer
    x = 443.51

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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.