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Finding the Fourth Proportional to 351,487.44, 485,087.40 and 200,607.12

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Solution

The fourth proportional to 351,487.44, 485,087.40 and 200,607.12 is: 276,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,487.44 : 485,087.40 = 200,607.12 : x
  2. Step 2: Convert to fraction form
    351,487.44/485,087.40 = 200,607.12/x
  3. Step 3: Cross multiply
    351,487.44x = 485,087.40 × 200,607.12
  4. Step 4: Simplify right side
    351,487.44x = 97,311,986,262.29
  5. Step 5: Solve for x
    x = 97,311,986,262.29/351,487.44
  6. Step 6: Final answer
    x = 276,857.65

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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.