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Finding the Fourth Proportional to 215,992.88, 298,066 and 119,205.84

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Solution

The fourth proportional to 215,992.88, 298,066 and 119,205.84 is: 164,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,992.88 : 298,066 = 119,205.84 : x
  2. Step 2: Convert to fraction form
    215,992.88/298,066 = 119,205.84/x
  3. Step 3: Cross multiply
    215,992.88x = 298,066 × 119,205.84
  4. Step 4: Simplify right side
    215,992.88x = 35,531,207,905.44
  5. Step 5: Solve for x
    x = 35,531,207,905.44/215,992.88
  6. Step 6: Final answer
    x = 164,501.76

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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.