Home / 253,997.18-381,011.60-67,008.86

Finding the Fourth Proportional to 253,997.18, 381,011.60 and 67,008.86

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Solution

The fourth proportional to 253,997.18, 381,011.60 and 67,008.86 is: 100,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,997.18 : 381,011.60 = 67,008.86 : x
  2. Step 2: Convert to fraction form
    253,997.18/381,011.60 = 67,008.86/x
  3. Step 3: Cross multiply
    253,997.18x = 381,011.60 × 67,008.86
  4. Step 4: Simplify right side
    253,997.18x = 25,531,151,225.24
  5. Step 5: Solve for x
    x = 25,531,151,225.24/253,997.18
  6. Step 6: Final answer
    x = 100,517.46

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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.