Home / 207,278.20-310,917.30-191,531.80

Finding the Fourth Proportional to 207,278.20, 310,917.30 and 191,531.80

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Solution

The fourth proportional to 207,278.20, 310,917.30 and 191,531.80 is: 287,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,278.20 : 310,917.30 = 191,531.80 : x
  2. Step 2: Convert to fraction form
    207,278.20/310,917.30 = 191,531.80/x
  3. Step 3: Cross multiply
    207,278.20x = 310,917.30 × 191,531.80
  4. Step 4: Simplify right side
    207,278.20x = 59,550,550,120.14
  5. Step 5: Solve for x
    x = 59,550,550,120.14/207,278.20
  6. Step 6: Final answer
    x = 287,297.70

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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.