Home / 221,349.90-305,717.82-161,189.58

Finding the Fourth Proportional to 221,349.90, 305,717.82 and 161,189.58

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Solution

The fourth proportional to 221,349.90, 305,717.82 and 161,189.58 is: 222,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,349.90 : 305,717.82 = 161,189.58 : x
  2. Step 2: Convert to fraction form
    221,349.90/305,717.82 = 161,189.58/x
  3. Step 3: Cross multiply
    221,349.90x = 305,717.82 × 161,189.58
  4. Step 4: Simplify right side
    221,349.90x = 49,278,527,004.32
  5. Step 5: Solve for x
    x = 49,278,527,004.32/221,349.90
  6. Step 6: Final answer
    x = 222,627.28

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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.