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Finding the Fourth Proportional to 199,374.85, 298,941.81 and 79,450.25

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Solution

The fourth proportional to 199,374.85, 298,941.81 and 79,450.25 is: 119,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,374.85 : 298,941.81 = 79,450.25 : x
  2. Step 2: Convert to fraction form
    199,374.85/298,941.81 = 79,450.25/x
  3. Step 3: Cross multiply
    199,374.85x = 298,941.81 × 79,450.25
  4. Step 4: Simplify right side
    199,374.85x = 23,751,000,243.87
  5. Step 5: Solve for x
    x = 23,751,000,243.87/199,374.85
  6. Step 6: Final answer
    x = 119,127.37

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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.