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Finding the Fourth Proportional to 239,859.71, 330,997.68 and 130,962.04

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Solution

The fourth proportional to 239,859.71, 330,997.68 and 130,962.04 is: 180,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,859.71 : 330,997.68 = 130,962.04 : x
  2. Step 2: Convert to fraction form
    239,859.71/330,997.68 = 130,962.04/x
  3. Step 3: Cross multiply
    239,859.71x = 330,997.68 × 130,962.04
  4. Step 4: Simplify right side
    239,859.71x = 43,348,131,408.07
  5. Step 5: Solve for x
    x = 43,348,131,408.07/239,859.71
  6. Step 6: Final answer
    x = 180,722.85

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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.