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Finding the Fourth Proportional to 321,370.84, 443,439.64 and 200,492.92

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Solution

The fourth proportional to 321,370.84, 443,439.64 and 200,492.92 is: 276,647.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,370.84 : 443,439.64 = 200,492.92 : x
  2. Step 2: Convert to fraction form
    321,370.84/443,439.64 = 200,492.92/x
  3. Step 3: Cross multiply
    321,370.84x = 443,439.64 × 200,492.92
  4. Step 4: Simplify right side
    321,370.84x = 88,906,508,267.35
  5. Step 5: Solve for x
    x = 88,906,508,267.35/321,370.84
  6. Step 6: Final answer
    x = 276,647.71

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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.