Home / 306,116.29-422,555.09-229,855.69

Finding the Fourth Proportional to 306,116.29, 422,555.09 and 229,855.69

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Solution

The fourth proportional to 306,116.29, 422,555.09 and 229,855.69 is: 317,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,116.29 : 422,555.09 = 229,855.69 : x
  2. Step 2: Convert to fraction form
    306,116.29/422,555.09 = 229,855.69/x
  3. Step 3: Cross multiply
    306,116.29x = 422,555.09 × 229,855.69
  4. Step 4: Simplify right side
    306,116.29x = 97,126,691,774.96
  5. Step 5: Solve for x
    x = 97,126,691,774.96/306,116.29
  6. Step 6: Final answer
    x = 317,286.91

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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.