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Finding the Fourth Proportional to 197,649, 296,504.22 and 66,351.72

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Solution

The fourth proportional to 197,649, 296,504.22 and 66,351.72 is: 99,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,649 : 296,504.22 = 66,351.72 : x
  2. Step 2: Convert to fraction form
    197,649/296,504.22 = 66,351.72/x
  3. Step 3: Cross multiply
    197,649x = 296,504.22 × 66,351.72
  4. Step 4: Simplify right side
    197,649x = 19,673,564,984.26
  5. Step 5: Solve for x
    x = 19,673,564,984.26/197,649
  6. Step 6: Final answer
    x = 99,537.89

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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.