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Finding the Fourth Proportional to 306,195.58, 422,525.96 and 170,221.25

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Solution

The fourth proportional to 306,195.58, 422,525.96 and 170,221.25 is: 234,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,195.58 : 422,525.96 = 170,221.25 : x
  2. Step 2: Convert to fraction form
    306,195.58/422,525.96 = 170,221.25/x
  3. Step 3: Cross multiply
    306,195.58x = 422,525.96 × 170,221.25
  4. Step 4: Simplify right side
    306,195.58x = 71,922,897,068.65
  5. Step 5: Solve for x
    x = 71,922,897,068.65/306,195.58
  6. Step 6: Final answer
    x = 234,892.02

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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.