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Finding the Fourth Proportional to 378,408.96, 567,668.52 and 112,134.96

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Solution

The fourth proportional to 378,408.96, 567,668.52 and 112,134.96 is: 168,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,408.96 : 567,668.52 = 112,134.96 : x
  2. Step 2: Convert to fraction form
    378,408.96/567,668.52 = 112,134.96/x
  3. Step 3: Cross multiply
    378,408.96x = 567,668.52 × 112,134.96
  4. Step 4: Simplify right side
    378,408.96x = 63,655,486,783.46
  5. Step 5: Solve for x
    x = 63,655,486,783.46/378,408.96
  6. Step 6: Final answer
    x = 168,218.76

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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.