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Finding the Fourth Proportional to 253,162.40, 379,665.84 and 120,003.26

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Solution

The fourth proportional to 253,162.40, 379,665.84 and 120,003.26 is: 179,968.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,162.40 : 379,665.84 = 120,003.26 : x
  2. Step 2: Convert to fraction form
    253,162.40/379,665.84 = 120,003.26/x
  3. Step 3: Cross multiply
    253,162.40x = 379,665.84 × 120,003.26
  4. Step 4: Simplify right side
    253,162.40x = 45,561,138,510.64
  5. Step 5: Solve for x
    x = 45,561,138,510.64/253,162.40
  6. Step 6: Final answer
    x = 179,968.03

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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.