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Finding the Fourth Proportional to 219,592.72, 329,499.62 and 86,568.44

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Solution

The fourth proportional to 219,592.72, 329,499.62 and 86,568.44 is: 129,896.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,592.72 : 329,499.62 = 86,568.44 : x
  2. Step 2: Convert to fraction form
    219,592.72/329,499.62 = 86,568.44/x
  3. Step 3: Cross multiply
    219,592.72x = 329,499.62 × 86,568.44
  4. Step 4: Simplify right side
    219,592.72x = 28,524,268,083.99
  5. Step 5: Solve for x
    x = 28,524,268,083.99/219,592.72
  6. Step 6: Final answer
    x = 129,896.24

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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.