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Finding the Fourth Proportional to 257,036.44, 354,871.08 and 165,193

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Solution

The fourth proportional to 257,036.44, 354,871.08 and 165,193 is: 228,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,036.44 : 354,871.08 = 165,193 : x
  2. Step 2: Convert to fraction form
    257,036.44/354,871.08 = 165,193/x
  3. Step 3: Cross multiply
    257,036.44x = 354,871.08 × 165,193
  4. Step 4: Simplify right side
    257,036.44x = 58,622,218,318.44
  5. Step 5: Solve for x
    x = 58,622,218,318.44/257,036.44
  6. Step 6: Final answer
    x = 228,069.68

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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.