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Finding the Fourth Proportional to 620.26, 930.38 and 164.26

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Solution

The fourth proportional to 620.26, 930.38 and 164.26 is: 246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.26 : 930.38 = 164.26 : x
  2. Step 2: Convert to fraction form
    620.26/930.38 = 164.26/x
  3. Step 3: Cross multiply
    620.26x = 930.38 × 164.26
  4. Step 4: Simplify right side
    620.26x = 152,824.22
  5. Step 5: Solve for x
    x = 152,824.22/620.26
  6. Step 6: Final answer
    x = 246.39

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Similar ratio
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1.5x scale

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.