Home / 217,916.85-300,749.61-131,923.22

Finding the Fourth Proportional to 217,916.85, 300,749.61 and 131,923.22

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Solution

The fourth proportional to 217,916.85, 300,749.61 and 131,923.22 is: 182,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,916.85 : 300,749.61 = 131,923.22 : x
  2. Step 2: Convert to fraction form
    217,916.85/300,749.61 = 131,923.22/x
  3. Step 3: Cross multiply
    217,916.85x = 300,749.61 × 131,923.22
  4. Step 4: Simplify right side
    217,916.85x = 39,675,855,777.75
  5. Step 5: Solve for x
    x = 39,675,855,777.75/217,916.85
  6. Step 6: Final answer
    x = 182,068.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.