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Finding the Fourth Proportional to 239,270.85, 330,208.48 and 131,840.85

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Solution

The fourth proportional to 239,270.85, 330,208.48 and 131,840.85 is: 181,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,270.85 : 330,208.48 = 131,840.85 : x
  2. Step 2: Convert to fraction form
    239,270.85/330,208.48 = 131,840.85/x
  3. Step 3: Cross multiply
    239,270.85x = 330,208.48 × 131,840.85
  4. Step 4: Simplify right side
    239,270.85x = 43,534,968,083.49
  5. Step 5: Solve for x
    x = 43,534,968,083.49/239,270.85
  6. Step 6: Final answer
    x = 181,948.48

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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.