Home / 219,904.20-329,856.30-192,785.40

Finding the Fourth Proportional to 219,904.20, 329,856.30 and 192,785.40

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Solution

The fourth proportional to 219,904.20, 329,856.30 and 192,785.40 is: 289,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,904.20 : 329,856.30 = 192,785.40 : x
  2. Step 2: Convert to fraction form
    219,904.20/329,856.30 = 192,785.40/x
  3. Step 3: Cross multiply
    219,904.20x = 329,856.30 × 192,785.40
  4. Step 4: Simplify right side
    219,904.20x = 63,591,478,738.02
  5. Step 5: Solve for x
    x = 63,591,478,738.02/219,904.20
  6. Step 6: Final answer
    x = 289,178.10

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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.