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Finding the Fourth Proportional to 234,580.79, 351,817.22 and 139,837.73

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Solution

The fourth proportional to 234,580.79, 351,817.22 and 139,837.73 is: 209,724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,580.79 : 351,817.22 = 139,837.73 : x
  2. Step 2: Convert to fraction form
    234,580.79/351,817.22 = 139,837.73/x
  3. Step 3: Cross multiply
    234,580.79x = 351,817.22 × 139,837.73
  4. Step 4: Simplify right side
    234,580.79x = 49,197,320,010.22
  5. Step 5: Solve for x
    x = 49,197,320,010.22/234,580.79
  6. Step 6: Final answer
    x = 209,724.42

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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.