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Finding the Fourth Proportional to 222,406.40, 333,609.60 and 220,332.80

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Solution

The fourth proportional to 222,406.40, 333,609.60 and 220,332.80 is: 330,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,406.40 : 333,609.60 = 220,332.80 : x
  2. Step 2: Convert to fraction form
    222,406.40/333,609.60 = 220,332.80/x
  3. Step 3: Cross multiply
    222,406.40x = 333,609.60 × 220,332.80
  4. Step 4: Simplify right side
    222,406.40x = 73,505,137,274.88
  5. Step 5: Solve for x
    x = 73,505,137,274.88/222,406.40
  6. Step 6: Final answer
    x = 330,499.20

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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.