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Finding the Fourth Proportional to 351,530.44, 485,146.74 and 200,650.12

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Solution

The fourth proportional to 351,530.44, 485,146.74 and 200,650.12 is: 276,916.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,530.44 : 485,146.74 = 200,650.12 : x
  2. Step 2: Convert to fraction form
    351,530.44/485,146.74 = 200,650.12/x
  3. Step 3: Cross multiply
    351,530.44x = 485,146.74 × 200,650.12
  4. Step 4: Simplify right side
    351,530.44x = 97,344,751,598.61
  5. Step 5: Solve for x
    x = 97,344,751,598.61/351,530.44
  6. Step 6: Final answer
    x = 276,916.99

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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.