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Finding the Fourth Proportional to 227,085.05, 313,375.91 and 125,108.15

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Solution

The fourth proportional to 227,085.05, 313,375.91 and 125,108.15 is: 172,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,085.05 : 313,375.91 = 125,108.15 : x
  2. Step 2: Convert to fraction form
    227,085.05/313,375.91 = 125,108.15/x
  3. Step 3: Cross multiply
    227,085.05x = 313,375.91 × 125,108.15
  4. Step 4: Simplify right side
    227,085.05x = 39,205,878,162.25
  5. Step 5: Solve for x
    x = 39,205,878,162.25/227,085.05
  6. Step 6: Final answer
    x = 172,648.44

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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.