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Finding the Fourth Proportional to 300,137.66, 450,093.49 and 122,549.61

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Solution

The fourth proportional to 300,137.66, 450,093.49 and 122,549.61 is: 183,778.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,137.66 : 450,093.49 = 122,549.61 : x
  2. Step 2: Convert to fraction form
    300,137.66/450,093.49 = 122,549.61/x
  3. Step 3: Cross multiply
    300,137.66x = 450,093.49 × 122,549.61
  4. Step 4: Simplify right side
    300,137.66x = 55,158,781,356.66
  5. Step 5: Solve for x
    x = 55,158,781,356.66/300,137.66
  6. Step 6: Final answer
    x = 183,778.28

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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.