Home / 378,453.28-567,515.08-108,521.77

Finding the Fourth Proportional to 378,453.28, 567,515.08 and 108,521.77

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Solution

The fourth proportional to 378,453.28, 567,515.08 and 108,521.77 is: 162,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,453.28 : 567,515.08 = 108,521.77 : x
  2. Step 2: Convert to fraction form
    378,453.28/567,515.08 = 108,521.77/x
  3. Step 3: Cross multiply
    378,453.28x = 567,515.08 × 108,521.77
  4. Step 4: Simplify right side
    378,453.28x = 61,587,740,983.29
  5. Step 5: Solve for x
    x = 61,587,740,983.29/378,453.28
  6. Step 6: Final answer
    x = 162,735.39

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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.