Home / 209,012.22-288,240.39-161,189.82

Finding the Fourth Proportional to 209,012.22, 288,240.39 and 161,189.82

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Solution

The fourth proportional to 209,012.22, 288,240.39 and 161,189.82 is: 222,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,012.22 : 288,240.39 = 161,189.82 : x
  2. Step 2: Convert to fraction form
    209,012.22/288,240.39 = 161,189.82/x
  3. Step 3: Cross multiply
    209,012.22x = 288,240.39 × 161,189.82
  4. Step 4: Simplify right side
    209,012.22x = 46,461,416,580.83
  5. Step 5: Solve for x
    x = 46,461,416,580.83/209,012.22
  6. Step 6: Final answer
    x = 222,290.43

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1.5x scale

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.