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Finding the Fourth Proportional to 252,997.50, 349,131.87 and 139,817.82

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Solution

The fourth proportional to 252,997.50, 349,131.87 and 139,817.82 is: 192,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,997.50 : 349,131.87 = 139,817.82 : x
  2. Step 2: Convert to fraction form
    252,997.50/349,131.87 = 139,817.82/x
  3. Step 3: Cross multiply
    252,997.50x = 349,131.87 × 139,817.82
  4. Step 4: Simplify right side
    252,997.50x = 48,814,856,955.92
  5. Step 5: Solve for x
    x = 48,814,856,955.92/252,997.50
  6. Step 6: Final answer
    x = 192,946.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.