Home / 209,014.22-288,243.15-161,191.82

Finding the Fourth Proportional to 209,014.22, 288,243.15 and 161,191.82

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Solution

The fourth proportional to 209,014.22, 288,243.15 and 161,191.82 is: 222,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,014.22 : 288,243.15 = 161,191.82 : x
  2. Step 2: Convert to fraction form
    209,014.22/288,243.15 = 161,191.82/x
  3. Step 3: Cross multiply
    209,014.22x = 288,243.15 × 161,191.82
  4. Step 4: Simplify right side
    209,014.22x = 46,462,437,951.03
  5. Step 5: Solve for x
    x = 46,462,437,951.03/209,014.22
  6. Step 6: Final answer
    x = 222,293.19

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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.