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Finding the Fourth Proportional to 226,236.78, 339,048.99 and 85,918.86

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Solution

The fourth proportional to 226,236.78, 339,048.99 and 85,918.86 is: 128,762.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,236.78 : 339,048.99 = 85,918.86 : x
  2. Step 2: Convert to fraction form
    226,236.78/339,048.99 = 85,918.86/x
  3. Step 3: Cross multiply
    226,236.78x = 339,048.99 × 85,918.86
  4. Step 4: Simplify right side
    226,236.78x = 29,130,702,704.95
  5. Step 5: Solve for x
    x = 29,130,702,704.95/226,236.78
  6. Step 6: Final answer
    x = 128,762.01

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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.