Home / 260,928.12-391,395.87-73,939.62

Finding the Fourth Proportional to 260,928.12, 391,395.87 and 73,939.62

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Solution

The fourth proportional to 260,928.12, 391,395.87 and 73,939.62 is: 110,910.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,928.12 : 391,395.87 = 73,939.62 : x
  2. Step 2: Convert to fraction form
    260,928.12/391,395.87 = 73,939.62/x
  3. Step 3: Cross multiply
    260,928.12x = 391,395.87 × 73,939.62
  4. Step 4: Simplify right side
    260,928.12x = 28,939,661,897.37
  5. Step 5: Solve for x
    x = 28,939,661,897.37/260,928.12
  6. Step 6: Final answer
    x = 110,910.48

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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.