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Finding the Fourth Proportional to 378,452.28, 567,513.59 and 108,520.77

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Solution

The fourth proportional to 378,452.28, 567,513.59 and 108,520.77 is: 162,733.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,452.28 : 567,513.59 = 108,520.77 : x
  2. Step 2: Convert to fraction form
    378,452.28/567,513.59 = 108,520.77/x
  3. Step 3: Cross multiply
    378,452.28x = 567,513.59 × 108,520.77
  4. Step 4: Simplify right side
    378,452.28x = 61,587,011,229.66
  5. Step 5: Solve for x
    x = 61,587,011,229.66/378,452.28
  6. Step 6: Final answer
    x = 162,733.89

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1.5x scale

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.