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Finding the Fourth Proportional to 171,275.68, 256,581.06 and 126,215.26

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Solution

The fourth proportional to 171,275.68, 256,581.06 and 126,215.26 is: 189,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,275.68 : 256,581.06 = 126,215.26 : x
  2. Step 2: Convert to fraction form
    171,275.68/256,581.06 = 126,215.26/x
  3. Step 3: Cross multiply
    171,275.68x = 256,581.06 × 126,215.26
  4. Step 4: Simplify right side
    171,275.68x = 32,384,445,198.98
  5. Step 5: Solve for x
    x = 32,384,445,198.98/171,275.68
  6. Step 6: Final answer
    x = 189,077.90

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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.