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Finding the Fourth Proportional to 239,814.66, 330,984.25 and 229,185.54

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Solution

The fourth proportional to 239,814.66, 330,984.25 and 229,185.54 is: 316,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,814.66 : 330,984.25 = 229,185.54 : x
  2. Step 2: Convert to fraction form
    239,814.66/330,984.25 = 229,185.54/x
  3. Step 3: Cross multiply
    239,814.66x = 330,984.25 × 229,185.54
  4. Step 4: Simplify right side
    239,814.66x = 75,856,804,067.75
  5. Step 5: Solve for x
    x = 75,856,804,067.75/239,814.66
  6. Step 6: Final answer
    x = 316,314.29

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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.