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Finding the Fourth Proportional to 253,173.49, 379,947.14 and 120,054.19

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Solution

The fourth proportional to 253,173.49, 379,947.14 and 120,054.19 is: 180,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,173.49 : 379,947.14 = 120,054.19 : x
  2. Step 2: Convert to fraction form
    253,173.49/379,947.14 = 120,054.19/x
  3. Step 3: Cross multiply
    253,173.49x = 379,947.14 × 120,054.19
  4. Step 4: Simplify right side
    253,173.49x = 45,614,246,135.52
  5. Step 5: Solve for x
    x = 45,614,246,135.52/253,173.49
  6. Step 6: Final answer
    x = 180,169.91

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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.