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Finding the Fourth Proportional to 219,193.80, 328,790.70 and 125,622.60

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Solution

The fourth proportional to 219,193.80, 328,790.70 and 125,622.60 is: 188,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,193.80 : 328,790.70 = 125,622.60 : x
  2. Step 2: Convert to fraction form
    219,193.80/328,790.70 = 125,622.60/x
  3. Step 3: Cross multiply
    219,193.80x = 328,790.70 × 125,622.60
  4. Step 4: Simplify right side
    219,193.80x = 41,303,542,589.82
  5. Step 5: Solve for x
    x = 41,303,542,589.82/219,193.80
  6. Step 6: Final answer
    x = 188,433.90

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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.