Home / 628.22-942.15-350.23

Finding the Fourth Proportional to 628.22, 942.15 and 350.23

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Solution

The fourth proportional to 628.22, 942.15 and 350.23 is: 525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.22 : 942.15 = 350.23 : x
  2. Step 2: Convert to fraction form
    628.22/942.15 = 350.23/x
  3. Step 3: Cross multiply
    628.22x = 942.15 × 350.23
  4. Step 4: Simplify right side
    628.22x = 329,969.19
  5. Step 5: Solve for x
    x = 329,969.19/628.22
  6. Step 6: Final answer
    x = 525.25

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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.