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Finding the Fourth Proportional to 222,485.80, 333,824.70 and 129,071.40

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Solution

The fourth proportional to 222,485.80, 333,824.70 and 129,071.40 is: 193,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,485.80 : 333,824.70 = 129,071.40 : x
  2. Step 2: Convert to fraction form
    222,485.80/333,824.70 = 129,071.40/x
  3. Step 3: Cross multiply
    222,485.80x = 333,824.70 × 129,071.40
  4. Step 4: Simplify right side
    222,485.80x = 43,087,221,383.58
  5. Step 5: Solve for x
    x = 43,087,221,383.58/222,485.80
  6. Step 6: Final answer
    x = 193,662.79

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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.