Home / 627.06-939.96-261.60

Finding the Fourth Proportional to 627.06, 939.96 and 261.60

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Solution

The fourth proportional to 627.06, 939.96 and 261.60 is: 392.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.06 : 939.96 = 261.60 : x
  2. Step 2: Convert to fraction form
    627.06/939.96 = 261.60/x
  3. Step 3: Cross multiply
    627.06x = 939.96 × 261.60
  4. Step 4: Simplify right side
    627.06x = 245,893.54
  5. Step 5: Solve for x
    x = 245,893.54/627.06
  6. Step 6: Final answer
    x = 392.14

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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.