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Finding the Fourth Proportional to 198,179.84, 297,415.56 and 131,597.84

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Solution

The fourth proportional to 198,179.84, 297,415.56 and 131,597.84 is: 197,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,179.84 : 297,415.56 = 131,597.84 : x
  2. Step 2: Convert to fraction form
    198,179.84/297,415.56 = 131,597.84/x
  3. Step 3: Cross multiply
    198,179.84x = 297,415.56 × 131,597.84
  4. Step 4: Simplify right side
    198,179.84x = 39,139,245,278.39
  5. Step 5: Solve for x
    x = 39,139,245,278.39/198,179.84
  6. Step 6: Final answer
    x = 197,493.58

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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.