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Finding the Fourth Proportional to 222,012.80, 332,047.20 and 198,490.40

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Solution

The fourth proportional to 222,012.80, 332,047.20 and 198,490.40 is: 296,866.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,012.80 : 332,047.20 = 198,490.40 : x
  2. Step 2: Convert to fraction form
    222,012.80/332,047.20 = 198,490.40/x
  3. Step 3: Cross multiply
    222,012.80x = 332,047.20 × 198,490.40
  4. Step 4: Simplify right side
    222,012.80x = 65,908,181,546.88
  5. Step 5: Solve for x
    x = 65,908,181,546.88/222,012.80
  6. Step 6: Final answer
    x = 296,866.58

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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.