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Finding the Fourth Proportional to 664,294.60, 996,344.70 and 190,930.60

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Solution

The fourth proportional to 664,294.60, 996,344.70 and 190,930.60 is: 286,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,294.60 : 996,344.70 = 190,930.60 : x
  2. Step 2: Convert to fraction form
    664,294.60/996,344.70 = 190,930.60/x
  3. Step 3: Cross multiply
    664,294.60x = 996,344.70 × 190,930.60
  4. Step 4: Simplify right side
    664,294.60x = 190,232,691,377.82
  5. Step 5: Solve for x
    x = 190,232,691,377.82/664,294.60
  6. Step 6: Final answer
    x = 286,367.96

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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.