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Finding the Fourth Proportional to 351,711.54, 485,350.62 and 200,808.54

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Solution

The fourth proportional to 351,711.54, 485,350.62 and 200,808.54 is: 277,109.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,711.54 : 485,350.62 = 200,808.54 : x
  2. Step 2: Convert to fraction form
    351,711.54/485,350.62 = 200,808.54/x
  3. Step 3: Cross multiply
    351,711.54x = 485,350.62 × 200,808.54
  4. Step 4: Simplify right side
    351,711.54x = 97,462,549,390.29
  5. Step 5: Solve for x
    x = 97,462,549,390.29/351,711.54
  6. Step 6: Final answer
    x = 277,109.33

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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.