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Finding the Fourth Proportional to 229,912.62, 317,276.34 and 129,310.62

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Solution

The fourth proportional to 229,912.62, 317,276.34 and 129,310.62 is: 178,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,912.62 : 317,276.34 = 129,310.62 : x
  2. Step 2: Convert to fraction form
    229,912.62/317,276.34 = 129,310.62/x
  3. Step 3: Cross multiply
    229,912.62x = 317,276.34 × 129,310.62
  4. Step 4: Simplify right side
    229,912.62x = 41,027,200,236.73
  5. Step 5: Solve for x
    x = 41,027,200,236.73/229,912.62
  6. Step 6: Final answer
    x = 178,446.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.