Home / 260,972.10-391,458.15-73,985.22

Finding the Fourth Proportional to 260,972.10, 391,458.15 and 73,985.22

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Solution

The fourth proportional to 260,972.10, 391,458.15 and 73,985.22 is: 110,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,972.10 : 391,458.15 = 73,985.22 : x
  2. Step 2: Convert to fraction form
    260,972.10/391,458.15 = 73,985.22/x
  3. Step 3: Cross multiply
    260,972.10x = 391,458.15 × 73,985.22
  4. Step 4: Simplify right side
    260,972.10x = 28,962,117,348.54
  5. Step 5: Solve for x
    x = 28,962,117,348.54/260,972.10
  6. Step 6: Final answer
    x = 110,977.83

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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.