Home / 306,066.62-422,434.38-209,537.42

Finding the Fourth Proportional to 306,066.62, 422,434.38 and 209,537.42

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Solution

The fourth proportional to 306,066.62, 422,434.38 and 209,537.42 is: 289,204.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,066.62 : 422,434.38 = 209,537.42 : x
  2. Step 2: Convert to fraction form
    306,066.62/422,434.38 = 209,537.42/x
  3. Step 3: Cross multiply
    306,066.62x = 422,434.38 × 209,537.42
  4. Step 4: Simplify right side
    306,066.62x = 88,515,810,104.50
  5. Step 5: Solve for x
    x = 88,515,810,104.50/306,066.62
  6. Step 6: Final answer
    x = 289,204.39

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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.