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Finding the Fourth Proportional to 300,943.35, 415,331.51 and 171,901.11

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Solution

The fourth proportional to 300,943.35, 415,331.51 and 171,901.11 is: 237,240.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,943.35 : 415,331.51 = 171,901.11 : x
  2. Step 2: Convert to fraction form
    300,943.35/415,331.51 = 171,901.11/x
  3. Step 3: Cross multiply
    300,943.35x = 415,331.51 × 171,901.11
  4. Step 4: Simplify right side
    300,943.35x = 71,395,947,586.98
  5. Step 5: Solve for x
    x = 71,395,947,586.98/300,943.35
  6. Step 6: Final answer
    x = 237,240.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.