Home / 260,819.73-390,651.58-200,403.51

Finding the Fourth Proportional to 260,819.73, 390,651.58 and 200,403.51

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Solution

The fourth proportional to 260,819.73, 390,651.58 and 200,403.51 is: 300,161.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,819.73 : 390,651.58 = 200,403.51 : x
  2. Step 2: Convert to fraction form
    260,819.73/390,651.58 = 200,403.51/x
  3. Step 3: Cross multiply
    260,819.73x = 390,651.58 × 200,403.51
  4. Step 4: Simplify right side
    260,819.73x = 78,287,947,819.05
  5. Step 5: Solve for x
    x = 78,287,947,819.05/260,819.73
  6. Step 6: Final answer
    x = 300,161.14

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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.