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Finding the Fourth Proportional to 219,179.28, 328,736.07 and 69,400.17

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Solution

The fourth proportional to 219,179.28, 328,736.07 and 69,400.17 is: 104,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,179.28 : 328,736.07 = 69,400.17 : x
  2. Step 2: Convert to fraction form
    219,179.28/328,736.07 = 69,400.17/x
  3. Step 3: Cross multiply
    219,179.28x = 328,736.07 × 69,400.17
  4. Step 4: Simplify right side
    219,179.28x = 22,814,339,143.13
  5. Step 5: Solve for x
    x = 22,814,339,143.13/219,179.28
  6. Step 6: Final answer
    x = 104,089.85

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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.