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Finding the Fourth Proportional to 290,958.32, 401,475.54 and 163,626.32

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Solution

The fourth proportional to 290,958.32, 401,475.54 and 163,626.32 is: 225,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,958.32 : 401,475.54 = 163,626.32 : x
  2. Step 2: Convert to fraction form
    290,958.32/401,475.54 = 163,626.32/x
  3. Step 3: Cross multiply
    290,958.32x = 401,475.54 × 163,626.32
  4. Step 4: Simplify right side
    290,958.32x = 65,691,965,180.21
  5. Step 5: Solve for x
    x = 65,691,965,180.21/290,958.32
  6. Step 6: Final answer
    x = 225,777.92

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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.