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Finding the Fourth Proportional to 239,396.76, 330,367.40 and 131,968.58

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Solution

The fourth proportional to 239,396.76, 330,367.40 and 131,968.58 is: 182,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,396.76 : 330,367.40 = 131,968.58 : x
  2. Step 2: Convert to fraction form
    239,396.76/330,367.40 = 131,968.58/x
  3. Step 3: Cross multiply
    239,396.76x = 330,367.40 × 131,968.58
  4. Step 4: Simplify right side
    239,396.76x = 43,598,116,822.37
  5. Step 5: Solve for x
    x = 43,598,116,822.37/239,396.76
  6. Step 6: Final answer
    x = 182,116.57

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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.