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Finding the Fourth Proportional to 168,026.40, 251,456.40 and 115,538.40

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Solution

The fourth proportional to 168,026.40, 251,456.40 and 115,538.40 is: 172,906.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,026.40 : 251,456.40 = 115,538.40 : x
  2. Step 2: Convert to fraction form
    168,026.40/251,456.40 = 115,538.40/x
  3. Step 3: Cross multiply
    168,026.40x = 251,456.40 × 115,538.40
  4. Step 4: Simplify right side
    168,026.40x = 29,052,870,125.76
  5. Step 5: Solve for x
    x = 29,052,870,125.76/168,026.40
  6. Step 6: Final answer
    x = 172,906.58

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1.5x scale

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.