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Finding the Fourth Proportional to 378,411.82, 567,687.69 and 108,528.66

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Solution

The fourth proportional to 378,411.82, 567,687.69 and 108,528.66 is: 162,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,411.82 : 567,687.69 = 108,528.66 : x
  2. Step 2: Convert to fraction form
    378,411.82/567,687.69 = 108,528.66/x
  3. Step 3: Cross multiply
    378,411.82x = 567,687.69 × 108,528.66
  4. Step 4: Simplify right side
    378,411.82x = 61,610,384,294.20
  5. Step 5: Solve for x
    x = 61,610,384,294.20/378,411.82
  6. Step 6: Final answer
    x = 162,813.06

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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.