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Finding the Fourth Proportional to 381,010.65, 571,858.61 and 203,669.25

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Solution

The fourth proportional to 381,010.65, 571,858.61 and 203,669.25 is: 305,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,010.65 : 571,858.61 = 203,669.25 : x
  2. Step 2: Convert to fraction form
    381,010.65/571,858.61 = 203,669.25/x
  3. Step 3: Cross multiply
    381,010.65x = 571,858.61 × 203,669.25
  4. Step 4: Simplify right side
    381,010.65x = 116,470,014,831.45
  5. Step 5: Solve for x
    x = 116,470,014,831.45/381,010.65
  6. Step 6: Final answer
    x = 305,687.03

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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.