Home / 227,139.40-339,902.70-197,878.60

Finding the Fourth Proportional to 227,139.40, 339,902.70 and 197,878.60

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Solution

The fourth proportional to 227,139.40, 339,902.70 and 197,878.60 is: 296,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,139.40 : 339,902.70 = 197,878.60 : x
  2. Step 2: Convert to fraction form
    227,139.40/339,902.70 = 197,878.60/x
  3. Step 3: Cross multiply
    227,139.40x = 339,902.70 × 197,878.60
  4. Step 4: Simplify right side
    227,139.40x = 67,259,470,412.22
  5. Step 5: Solve for x
    x = 67,259,470,412.22/227,139.40
  6. Step 6: Final answer
    x = 296,115.38

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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.