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Finding the Fourth Proportional to 381,012.65, 571,861.61 and 203,671.25

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Solution

The fourth proportional to 381,012.65, 571,861.61 and 203,671.25 is: 305,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,012.65 : 571,861.61 = 203,671.25 : x
  2. Step 2: Convert to fraction form
    381,012.65/571,861.61 = 203,671.25/x
  3. Step 3: Cross multiply
    381,012.65x = 571,861.61 × 203,671.25
  4. Step 4: Simplify right side
    381,012.65x = 116,471,768,935.71
  5. Step 5: Solve for x
    x = 116,471,768,935.71/381,012.65
  6. Step 6: Final answer
    x = 305,690.03

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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.