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Finding the Fourth Proportional to 253,360.68, 379,997.28 and 75,820.02

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Solution

The fourth proportional to 253,360.68, 379,997.28 and 75,820.02 is: 113,716.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,360.68 : 379,997.28 = 75,820.02 : x
  2. Step 2: Convert to fraction form
    253,360.68/379,997.28 = 75,820.02/x
  3. Step 3: Cross multiply
    253,360.68x = 379,997.28 × 75,820.02
  4. Step 4: Simplify right side
    253,360.68x = 28,811,401,369.55
  5. Step 5: Solve for x
    x = 28,811,401,369.55/253,360.68
  6. Step 6: Final answer
    x = 113,716.94

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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.