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Finding the Fourth Proportional to 378,888.44, 568,426.82 and 112,648.52

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Solution

The fourth proportional to 378,888.44, 568,426.82 and 112,648.52 is: 169,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,888.44 : 568,426.82 = 112,648.52 : x
  2. Step 2: Convert to fraction form
    378,888.44/568,426.82 = 112,648.52/x
  3. Step 3: Cross multiply
    378,888.44x = 568,426.82 × 112,648.52
  4. Step 4: Simplify right side
    378,888.44x = 64,032,440,859.13
  5. Step 5: Solve for x
    x = 64,032,440,859.13/378,888.44
  6. Step 6: Final answer
    x = 169,000.78

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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.