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Finding the Fourth Proportional to 351,873.52, 485,586.50 and 190,729.21

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Solution

The fourth proportional to 351,873.52, 485,586.50 and 190,729.21 is: 263,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,873.52 : 485,586.50 = 190,729.21 : x
  2. Step 2: Convert to fraction form
    351,873.52/485,586.50 = 190,729.21/x
  3. Step 3: Cross multiply
    351,873.52x = 485,586.50 × 190,729.21
  4. Step 4: Simplify right side
    351,873.52x = 92,615,527,364.05
  5. Step 5: Solve for x
    x = 92,615,527,364.05/351,873.52
  6. Step 6: Final answer
    x = 263,206.87

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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.