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Finding the Fourth Proportional to 381,042.41, 571,563.77 and 141,238.77

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Solution

The fourth proportional to 381,042.41, 571,563.77 and 141,238.77 is: 211,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,042.41 : 571,563.77 = 141,238.77 : x
  2. Step 2: Convert to fraction form
    381,042.41/571,563.77 = 141,238.77/x
  3. Step 3: Cross multiply
    381,042.41x = 571,563.77 × 141,238.77
  4. Step 4: Simplify right side
    381,042.41x = 80,726,963,145.17
  5. Step 5: Solve for x
    x = 80,726,963,145.17/381,042.41
  6. Step 6: Final answer
    x = 211,858.21

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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.