Home / 260,918.58-391,381.47-73,929.90

Finding the Fourth Proportional to 260,918.58, 391,381.47 and 73,929.90

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Solution

The fourth proportional to 260,918.58, 391,381.47 and 73,929.90 is: 110,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,918.58 : 391,381.47 = 73,929.90 : x
  2. Step 2: Convert to fraction form
    260,918.58/391,381.47 = 73,929.90/x
  3. Step 3: Cross multiply
    260,918.58x = 391,381.47 × 73,929.90
  4. Step 4: Simplify right side
    260,918.58x = 28,934,792,938.95
  5. Step 5: Solve for x
    x = 28,934,792,938.95/260,918.58
  6. Step 6: Final answer
    x = 110,895.87

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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.