Home / 208,205.20-312,261-95,777.47

Finding the Fourth Proportional to 208,205.20, 312,261 and 95,777.47

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Solution

The fourth proportional to 208,205.20, 312,261 and 95,777.47 is: 143,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,205.20 : 312,261 = 95,777.47 : x
  2. Step 2: Convert to fraction form
    208,205.20/312,261 = 95,777.47/x
  3. Step 3: Cross multiply
    208,205.20x = 312,261 × 95,777.47
  4. Step 4: Simplify right side
    208,205.20x = 29,907,568,559.67
  5. Step 5: Solve for x
    x = 29,907,568,559.67/208,205.20
  6. Step 6: Final answer
    x = 143,644.68

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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.