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Finding the Fourth Proportional to 291,061.28, 401,663.97 and 163,736.97

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Solution

The fourth proportional to 291,061.28, 401,663.97 and 163,736.97 is: 225,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,061.28 : 401,663.97 = 163,736.97 : x
  2. Step 2: Convert to fraction form
    291,061.28/401,663.97 = 163,736.97/x
  3. Step 3: Cross multiply
    291,061.28x = 401,663.97 × 163,736.97
  4. Step 4: Simplify right side
    291,061.28x = 65,767,241,405.97
  5. Step 5: Solve for x
    x = 65,767,241,405.97/291,061.28
  6. Step 6: Final answer
    x = 225,956.69

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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.