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Finding the Fourth Proportional to 239,636.88, 330,714 and 137,694.24

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Solution

The fourth proportional to 239,636.88, 330,714 and 137,694.24 is: 190,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,636.88 : 330,714 = 137,694.24 : x
  2. Step 2: Convert to fraction form
    239,636.88/330,714 = 137,694.24/x
  3. Step 3: Cross multiply
    239,636.88x = 330,714 × 137,694.24
  4. Step 4: Simplify right side
    239,636.88x = 45,537,412,887.36
  5. Step 5: Solve for x
    x = 45,537,412,887.36/239,636.88
  6. Step 6: Final answer
    x = 190,026.73

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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.