Home / 628.06-942.36-243.58

Finding the Fourth Proportional to 628.06, 942.36 and 243.58

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Solution

The fourth proportional to 628.06, 942.36 and 243.58 is: 365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.06 : 942.36 = 243.58 : x
  2. Step 2: Convert to fraction form
    628.06/942.36 = 243.58/x
  3. Step 3: Cross multiply
    628.06x = 942.36 × 243.58
  4. Step 4: Simplify right side
    628.06x = 229,540.05
  5. Step 5: Solve for x
    x = 229,540.05/628.06
  6. Step 6: Final answer
    x = 365.47

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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.