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Finding the Fourth Proportional to 215,379.39, 297,202.09 and 124,764.47

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Solution

The fourth proportional to 215,379.39, 297,202.09 and 124,764.47 is: 172,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,379.39 : 297,202.09 = 124,764.47 : x
  2. Step 2: Convert to fraction form
    215,379.39/297,202.09 = 124,764.47/x
  3. Step 3: Cross multiply
    215,379.39x = 297,202.09 × 124,764.47
  4. Step 4: Simplify right side
    215,379.39x = 37,080,259,131.91
  5. Step 5: Solve for x
    x = 37,080,259,131.91/215,379.39
  6. Step 6: Final answer
    x = 172,162.52

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1.5x scale

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.