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Finding the Fourth Proportional to 219,470.80, 329,206.20 and 202,190.80

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Solution

The fourth proportional to 219,470.80, 329,206.20 and 202,190.80 is: 303,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,470.80 : 329,206.20 = 202,190.80 : x
  2. Step 2: Convert to fraction form
    219,470.80/329,206.20 = 202,190.80/x
  3. Step 3: Cross multiply
    219,470.80x = 329,206.20 × 202,190.80
  4. Step 4: Simplify right side
    219,470.80x = 66,562,464,942.96
  5. Step 5: Solve for x
    x = 66,562,464,942.96/219,470.80
  6. Step 6: Final answer
    x = 303,286.20

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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.