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Finding the Fourth Proportional to 219,081, 328,622.22 and 52,869

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Solution

The fourth proportional to 219,081, 328,622.22 and 52,869 is: 79,303.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,081 : 328,622.22 = 52,869 : x
  2. Step 2: Convert to fraction form
    219,081/328,622.22 = 52,869/x
  3. Step 3: Cross multiply
    219,081x = 328,622.22 × 52,869
  4. Step 4: Simplify right side
    219,081x = 17,373,928,149.18
  5. Step 5: Solve for x
    x = 17,373,928,149.18/219,081
  6. Step 6: Final answer
    x = 79,303.67

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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.