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Finding the Fourth Proportional to 297,690.60, 410,815.90 and 161,725.60

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Solution

The fourth proportional to 297,690.60, 410,815.90 and 161,725.60 is: 223,182.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,690.60 : 410,815.90 = 161,725.60 : x
  2. Step 2: Convert to fraction form
    297,690.60/410,815.90 = 161,725.60/x
  3. Step 3: Cross multiply
    297,690.60x = 410,815.90 × 161,725.60
  4. Step 4: Simplify right side
    297,690.60x = 66,439,447,917.04
  5. Step 5: Solve for x
    x = 66,439,447,917.04/297,690.60
  6. Step 6: Final answer
    x = 223,182.89

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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.