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Finding the Fourth Proportional to 222,558.60, 333,384.30 and 138,059.40

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Solution

The fourth proportional to 222,558.60, 333,384.30 and 138,059.40 is: 206,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,558.60 : 333,384.30 = 138,059.40 : x
  2. Step 2: Convert to fraction form
    222,558.60/333,384.30 = 138,059.40/x
  3. Step 3: Cross multiply
    222,558.60x = 333,384.30 × 138,059.40
  4. Step 4: Simplify right side
    222,558.60x = 46,026,836,427.42
  5. Step 5: Solve for x
    x = 46,026,836,427.42/222,558.60
  6. Step 6: Final answer
    x = 206,807.72

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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.