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Finding the Fourth Proportional to 620.56, 930.24 and 273.70

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Solution

The fourth proportional to 620.56, 930.24 and 273.70 is: 410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.56 : 930.24 = 273.70 : x
  2. Step 2: Convert to fraction form
    620.56/930.24 = 273.70/x
  3. Step 3: Cross multiply
    620.56x = 930.24 × 273.70
  4. Step 4: Simplify right side
    620.56x = 254,606.69
  5. Step 5: Solve for x
    x = 254,606.69/620.56
  6. Step 6: Final answer
    x = 410.29

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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.