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Finding the Fourth Proportional to 171,659.70, 257,489.55 and 168,743.70

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Solution

The fourth proportional to 171,659.70, 257,489.55 and 168,743.70 is: 253,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,659.70 : 257,489.55 = 168,743.70 : x
  2. Step 2: Convert to fraction form
    171,659.70/257,489.55 = 168,743.70/x
  3. Step 3: Cross multiply
    171,659.70x = 257,489.55 × 168,743.70
  4. Step 4: Simplify right side
    171,659.70x = 43,449,739,378.34
  5. Step 5: Solve for x
    x = 43,449,739,378.34/171,659.70
  6. Step 6: Final answer
    x = 253,115.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.