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Finding the Fourth Proportional to 252,997, 349,131.18 and 139,817.32

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Solution

The fourth proportional to 252,997, 349,131.18 and 139,817.32 is: 192,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,997 : 349,131.18 = 139,817.32 : x
  2. Step 2: Convert to fraction form
    252,997/349,131.18 = 139,817.32/x
  3. Step 3: Cross multiply
    252,997x = 349,131.18 × 139,817.32
  4. Step 4: Simplify right side
    252,997x = 48,814,585,916.04
  5. Step 5: Solve for x
    x = 48,814,585,916.04/252,997
  6. Step 6: Final answer
    x = 192,945.32

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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.