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Finding the Fourth Proportional to 351,801.50, 485,484.84 and 190,660.50

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Solution

The fourth proportional to 351,801.50, 485,484.84 and 190,660.50 is: 263,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,801.50 : 485,484.84 = 190,660.50 : x
  2. Step 2: Convert to fraction form
    351,801.50/485,484.84 = 190,660.50/x
  3. Step 3: Cross multiply
    351,801.50x = 485,484.84 × 190,660.50
  4. Step 4: Simplify right side
    351,801.50x = 92,562,782,336.82
  5. Step 5: Solve for x
    x = 92,562,782,336.82/351,801.50
  6. Step 6: Final answer
    x = 263,110.83

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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.