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Finding the Fourth Proportional to 226,699.88, 312,840.78 and 131,204.66

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Solution

The fourth proportional to 226,699.88, 312,840.78 and 131,204.66 is: 181,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,699.88 : 312,840.78 = 131,204.66 : x
  2. Step 2: Convert to fraction form
    226,699.88/312,840.78 = 131,204.66/x
  3. Step 3: Cross multiply
    226,699.88x = 312,840.78 × 131,204.66
  4. Step 4: Simplify right side
    226,699.88x = 41,046,168,174.03
  5. Step 5: Solve for x
    x = 41,046,168,174.03/226,699.88
  6. Step 6: Final answer
    x = 181,059.51

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1.5x scale

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.