Home / 306,618.03-422,892.81-199,222.98

Finding the Fourth Proportional to 306,618.03, 422,892.81 and 199,222.98

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Solution

The fourth proportional to 306,618.03, 422,892.81 and 199,222.98 is: 274,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,618.03 : 422,892.81 = 199,222.98 : x
  2. Step 2: Convert to fraction form
    306,618.03/422,892.81 = 199,222.98/x
  3. Step 3: Cross multiply
    306,618.03x = 422,892.81 × 199,222.98
  4. Step 4: Simplify right side
    306,618.03x = 84,249,965,828.77
  5. Step 5: Solve for x
    x = 84,249,965,828.77/306,618.03
  6. Step 6: Final answer
    x = 274,771.73

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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.