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Finding the Fourth Proportional to 378,567.76, 568,201.56 and 191,710.48

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Solution

The fourth proportional to 378,567.76, 568,201.56 and 191,710.48 is: 287,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,567.76 : 568,201.56 = 191,710.48 : x
  2. Step 2: Convert to fraction form
    378,567.76/568,201.56 = 191,710.48/x
  3. Step 3: Cross multiply
    378,567.76x = 568,201.56 × 191,710.48
  4. Step 4: Simplify right side
    378,567.76x = 108,930,193,804.35
  5. Step 5: Solve for x
    x = 108,930,193,804.35/378,567.76
  6. Step 6: Final answer
    x = 287,742.92

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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.