Home / 209,310.84-313,963.56-51,540.66

Finding the Fourth Proportional to 209,310.84, 313,963.56 and 51,540.66

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Solution

The fourth proportional to 209,310.84, 313,963.56 and 51,540.66 is: 77,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,310.84 : 313,963.56 = 51,540.66 : x
  2. Step 2: Convert to fraction form
    209,310.84/313,963.56 = 51,540.66/x
  3. Step 3: Cross multiply
    209,310.84x = 313,963.56 × 51,540.66
  4. Step 4: Simplify right side
    209,310.84x = 16,181,889,098.35
  5. Step 5: Solve for x
    x = 16,181,889,098.35/209,310.84
  6. Step 6: Final answer
    x = 77,310.33

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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.