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Finding the Fourth Proportional to 321,668.55, 443,922.93 and 185,727.60

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Solution

The fourth proportional to 321,668.55, 443,922.93 and 185,727.60 is: 256,315.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,668.55 : 443,922.93 = 185,727.60 : x
  2. Step 2: Convert to fraction form
    321,668.55/443,922.93 = 185,727.60/x
  3. Step 3: Cross multiply
    321,668.55x = 443,922.93 × 185,727.60
  4. Step 4: Simplify right side
    321,668.55x = 82,448,740,373.87
  5. Step 5: Solve for x
    x = 82,448,740,373.87/321,668.55
  6. Step 6: Final answer
    x = 256,315.83

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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.