Home / 622.22-933.49-257.11

Finding the Fourth Proportional to 622.22, 933.49 and 257.11

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Solution

The fourth proportional to 622.22, 933.49 and 257.11 is: 385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.22 : 933.49 = 257.11 : x
  2. Step 2: Convert to fraction form
    622.22/933.49 = 257.11/x
  3. Step 3: Cross multiply
    622.22x = 933.49 × 257.11
  4. Step 4: Simplify right side
    622.22x = 240,007.60
  5. Step 5: Solve for x
    x = 240,007.60/622.22
  6. Step 6: Final answer
    x = 385.73

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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.