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Finding the Fourth Proportional to 231,805.79, 347,758.64 and 71,878.51

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Solution

The fourth proportional to 231,805.79, 347,758.64 and 71,878.51 is: 107,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,805.79 : 347,758.64 = 71,878.51 : x
  2. Step 2: Convert to fraction form
    231,805.79/347,758.64 = 71,878.51/x
  3. Step 3: Cross multiply
    231,805.79x = 347,758.64 × 71,878.51
  4. Step 4: Simplify right side
    231,805.79x = 24,996,373,227.68
  5. Step 5: Solve for x
    x = 24,996,373,227.68/231,805.79
  6. Step 6: Final answer
    x = 107,833.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.