Home / 628.22-942.19-238.26

Finding the Fourth Proportional to 628.22, 942.19 and 238.26

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Solution

The fourth proportional to 628.22, 942.19 and 238.26 is: 357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.22 : 942.19 = 238.26 : x
  2. Step 2: Convert to fraction form
    628.22/942.19 = 238.26/x
  3. Step 3: Cross multiply
    628.22x = 942.19 × 238.26
  4. Step 4: Simplify right side
    628.22x = 224,486.19
  5. Step 5: Solve for x
    x = 224,486.19/628.22
  6. Step 6: Final answer
    x = 357.34

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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.