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Finding the Fourth Proportional to 378,885.30, 568,323 and 109,020.48

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Solution

The fourth proportional to 378,885.30, 568,323 and 109,020.48 is: 163,529.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,885.30 : 568,323 = 109,020.48 : x
  2. Step 2: Convert to fraction form
    378,885.30/568,323 = 109,020.48/x
  3. Step 3: Cross multiply
    378,885.30x = 568,323 × 109,020.48
  4. Step 4: Simplify right side
    378,885.30x = 61,958,846,255.04
  5. Step 5: Solve for x
    x = 61,958,846,255.04/378,885.30
  6. Step 6: Final answer
    x = 163,529.30

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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.