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Finding the Fourth Proportional to 222,139.80, 333,209.70 and 89,040.60

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Solution

The fourth proportional to 222,139.80, 333,209.70 and 89,040.60 is: 133,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,139.80 : 333,209.70 = 89,040.60 : x
  2. Step 2: Convert to fraction form
    222,139.80/333,209.70 = 89,040.60/x
  3. Step 3: Cross multiply
    222,139.80x = 333,209.70 × 89,040.60
  4. Step 4: Simplify right side
    222,139.80x = 29,669,191,613.82
  5. Step 5: Solve for x
    x = 29,669,191,613.82/222,139.80
  6. Step 6: Final answer
    x = 133,560.90

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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.