Home / 219,431.52-329,144.84-69,667.78

Finding the Fourth Proportional to 219,431.52, 329,144.84 and 69,667.78

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Solution

The fourth proportional to 219,431.52, 329,144.84 and 69,667.78 is: 104,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,431.52 : 329,144.84 = 69,667.78 : x
  2. Step 2: Convert to fraction form
    219,431.52/329,144.84 = 69,667.78/x
  3. Step 3: Cross multiply
    219,431.52x = 329,144.84 × 69,667.78
  4. Step 4: Simplify right side
    219,431.52x = 22,930,790,301.26
  5. Step 5: Solve for x
    x = 22,930,790,301.26/219,431.52
  6. Step 6: Final answer
    x = 104,500.90

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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.