Home / 306,167.58-422,364.06-198,771.30

Finding the Fourth Proportional to 306,167.58, 422,364.06 and 198,771.30

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Solution

The fourth proportional to 306,167.58, 422,364.06 and 198,771.30 is: 274,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,167.58 : 422,364.06 = 198,771.30 : x
  2. Step 2: Convert to fraction form
    306,167.58/422,364.06 = 198,771.30/x
  3. Step 3: Cross multiply
    306,167.58x = 422,364.06 × 198,771.30
  4. Step 4: Simplify right side
    306,167.58x = 83,953,853,279.48
  5. Step 5: Solve for x
    x = 83,953,853,279.48/306,167.58
  6. Step 6: Final answer
    x = 274,208.83

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1.5x scale

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.