Home / 381,153.05-571,668.23-111,217.81

Finding the Fourth Proportional to 381,153.05, 571,668.23 and 111,217.81

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Solution

The fourth proportional to 381,153.05, 571,668.23 and 111,217.81 is: 166,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,153.05 : 571,668.23 = 111,217.81 : x
  2. Step 2: Convert to fraction form
    381,153.05/571,668.23 = 111,217.81/x
  3. Step 3: Cross multiply
    381,153.05x = 571,668.23 × 111,217.81
  4. Step 4: Simplify right side
    381,153.05x = 63,579,686,601.92
  5. Step 5: Solve for x
    x = 63,579,686,601.92/381,153.05
  6. Step 6: Final answer
    x = 166,808.81

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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.