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Finding the Fourth Proportional to 321,173.62, 443,041.02 and 252,939.22

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Solution

The fourth proportional to 321,173.62, 443,041.02 and 252,939.22 is: 348,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,173.62 : 443,041.02 = 252,939.22 : x
  2. Step 2: Convert to fraction form
    321,173.62/443,041.02 = 252,939.22/x
  3. Step 3: Cross multiply
    321,173.62x = 443,041.02 × 252,939.22
  4. Step 4: Simplify right side
    321,173.62x = 112,062,450,026.80
  5. Step 5: Solve for x
    x = 112,062,450,026.80/321,173.62
  6. Step 6: Final answer
    x = 348,915.49

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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.