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Finding the Fourth Proportional to 239,892.82, 330,932.52 and 143,028.36

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Solution

The fourth proportional to 239,892.82, 330,932.52 and 143,028.36 is: 197,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,892.82 : 330,932.52 = 143,028.36 : x
  2. Step 2: Convert to fraction form
    239,892.82/330,932.52 = 143,028.36/x
  3. Step 3: Cross multiply
    239,892.82x = 330,932.52 × 143,028.36
  4. Step 4: Simplify right side
    239,892.82x = 47,332,735,606.27
  5. Step 5: Solve for x
    x = 47,332,735,606.27/239,892.82
  6. Step 6: Final answer
    x = 197,307.85

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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.