Home / 209,013.22-288,241.77-161,190.82

Finding the Fourth Proportional to 209,013.22, 288,241.77 and 161,190.82

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Solution

The fourth proportional to 209,013.22, 288,241.77 and 161,190.82 is: 222,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,013.22 : 288,241.77 = 161,190.82 : x
  2. Step 2: Convert to fraction form
    209,013.22/288,241.77 = 161,190.82/x
  3. Step 3: Cross multiply
    209,013.22x = 288,241.77 × 161,190.82
  4. Step 4: Simplify right side
    209,013.22x = 46,461,927,264.55
  5. Step 5: Solve for x
    x = 46,461,927,264.55/209,013.22
  6. Step 6: Final answer
    x = 222,291.81

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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.