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Finding the Fourth Proportional to 321,621.33, 443,547 and 200,773.80

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Solution

The fourth proportional to 321,621.33, 443,547 and 200,773.80 is: 276,886.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,621.33 : 443,547 = 200,773.80 : x
  2. Step 2: Convert to fraction form
    321,621.33/443,547 = 200,773.80/x
  3. Step 3: Cross multiply
    321,621.33x = 443,547 × 200,773.80
  4. Step 4: Simplify right side
    321,621.33x = 89,052,616,668.60
  5. Step 5: Solve for x
    x = 89,052,616,668.60/321,621.33
  6. Step 6: Final answer
    x = 276,886.54

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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.