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Finding the Fourth Proportional to 215,910.98, 297,971.73 and 125,266.97

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Solution

The fourth proportional to 215,910.98, 297,971.73 and 125,266.97 is: 172,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,910.98 : 297,971.73 = 125,266.97 : x
  2. Step 2: Convert to fraction form
    215,910.98/297,971.73 = 125,266.97/x
  3. Step 3: Cross multiply
    215,910.98x = 297,971.73 × 125,266.97
  4. Step 4: Simplify right side
    215,910.98x = 37,326,014,272.90
  5. Step 5: Solve for x
    x = 37,326,014,272.90/215,910.98
  6. Step 6: Final answer
    x = 172,876.87

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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.