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Finding the Fourth Proportional to 222,451.20, 333,676.80 and 220,118.40

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Solution

The fourth proportional to 222,451.20, 333,676.80 and 220,118.40 is: 330,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,451.20 : 333,676.80 = 220,118.40 : x
  2. Step 2: Convert to fraction form
    222,451.20/333,676.80 = 220,118.40/x
  3. Step 3: Cross multiply
    222,451.20x = 333,676.80 × 220,118.40
  4. Step 4: Simplify right side
    222,451.20x = 73,448,403,333.12
  5. Step 5: Solve for x
    x = 73,448,403,333.12/222,451.20
  6. Step 6: Final answer
    x = 330,177.60

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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.