Home / 208,299.85-312,450.23-75,274.05

Finding the Fourth Proportional to 208,299.85, 312,450.23 and 75,274.05

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Solution

The fourth proportional to 208,299.85, 312,450.23 and 75,274.05 is: 112,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,299.85 : 312,450.23 = 75,274.05 : x
  2. Step 2: Convert to fraction form
    208,299.85/312,450.23 = 75,274.05/x
  3. Step 3: Cross multiply
    208,299.85x = 312,450.23 × 75,274.05
  4. Step 4: Simplify right side
    208,299.85x = 23,519,394,235.53
  5. Step 5: Solve for x
    x = 23,519,394,235.53/208,299.85
  6. Step 6: Final answer
    x = 112,911.24

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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.