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Finding the Fourth Proportional to 222,485.54, 333,728.30 and 129,056.90

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Solution

The fourth proportional to 222,485.54, 333,728.30 and 129,056.90 is: 193,585.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,485.54 : 333,728.30 = 129,056.90 : x
  2. Step 2: Convert to fraction form
    222,485.54/333,728.30 = 129,056.90/x
  3. Step 3: Cross multiply
    222,485.54x = 333,728.30 × 129,056.90
  4. Step 4: Simplify right side
    222,485.54x = 43,069,938,494.27
  5. Step 5: Solve for x
    x = 43,069,938,494.27/222,485.54
  6. Step 6: Final answer
    x = 193,585.34

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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.