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Finding the Fourth Proportional to 381,051.56, 571,960.07 and 338,634.69

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Solution

The fourth proportional to 381,051.56, 571,960.07 and 338,634.69 is: 508,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,051.56 : 571,960.07 = 338,634.69 : x
  2. Step 2: Convert to fraction form
    381,051.56/571,960.07 = 338,634.69/x
  3. Step 3: Cross multiply
    381,051.56x = 571,960.07 × 338,634.69
  4. Step 4: Simplify right side
    381,051.56x = 193,685,521,645.96
  5. Step 5: Solve for x
    x = 193,685,521,645.96/381,051.56
  6. Step 6: Final answer
    x = 508,292.17

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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.