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Finding the Fourth Proportional to 278,575.81, 383,745.99 and 237,606.47

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Solution

The fourth proportional to 278,575.81, 383,745.99 and 237,606.47 is: 327,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,575.81 : 383,745.99 = 237,606.47 : x
  2. Step 2: Convert to fraction form
    278,575.81/383,745.99 = 237,606.47/x
  3. Step 3: Cross multiply
    278,575.81x = 383,745.99 × 237,606.47
  4. Step 4: Simplify right side
    278,575.81x = 91,180,530,060.56
  5. Step 5: Solve for x
    x = 91,180,530,060.56/278,575.81
  6. Step 6: Final answer
    x = 327,309.58

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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.