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Finding the Fourth Proportional to 321,492.53, 443,661.77 and 185,532.21

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Solution

The fourth proportional to 321,492.53, 443,661.77 and 185,532.21 is: 256,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,492.53 : 443,661.77 = 185,532.21 : x
  2. Step 2: Convert to fraction form
    321,492.53/443,661.77 = 185,532.21/x
  3. Step 3: Cross multiply
    321,492.53x = 443,661.77 × 185,532.21
  4. Step 4: Simplify right side
    321,492.53x = 82,313,549,144.44
  5. Step 5: Solve for x
    x = 82,313,549,144.44/321,492.53
  6. Step 6: Final answer
    x = 256,035.65

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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.