Home / 209,034.22-288,270.75-161,211.82

Finding the Fourth Proportional to 209,034.22, 288,270.75 and 161,211.82

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Solution

The fourth proportional to 209,034.22, 288,270.75 and 161,211.82 is: 222,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,034.22 : 288,270.75 = 161,211.82 : x
  2. Step 2: Convert to fraction form
    209,034.22/288,270.75 = 161,211.82/x
  3. Step 3: Cross multiply
    209,034.22x = 288,270.75 × 161,211.82
  4. Step 4: Simplify right side
    209,034.22x = 46,472,652,260.27
  5. Step 5: Solve for x
    x = 46,472,652,260.27/209,034.22
  6. Step 6: Final answer
    x = 222,320.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.