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Finding the Fourth Proportional to 321,322.12, 443,323.22 and 185,337.84

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Solution

The fourth proportional to 321,322.12, 443,323.22 and 185,337.84 is: 255,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,322.12 : 443,323.22 = 185,337.84 : x
  2. Step 2: Convert to fraction form
    321,322.12/443,323.22 = 185,337.84/x
  3. Step 3: Cross multiply
    321,322.12x = 443,323.22 × 185,337.84
  4. Step 4: Simplify right side
    321,322.12x = 82,164,568,016.64
  5. Step 5: Solve for x
    x = 82,164,568,016.64/321,322.12
  6. Step 6: Final answer
    x = 255,707.79

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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.