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Finding the Fourth Proportional to 363,912.37, 545,901.37 and 139,263.73

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Solution

The fourth proportional to 363,912.37, 545,901.37 and 139,263.73 is: 208,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,912.37 : 545,901.37 = 139,263.73 : x
  2. Step 2: Convert to fraction form
    363,912.37/545,901.37 = 139,263.73/x
  3. Step 3: Cross multiply
    363,912.37x = 545,901.37 × 139,263.73
  4. Step 4: Simplify right side
    363,912.37x = 76,024,259,285.40
  5. Step 5: Solve for x
    x = 76,024,259,285.40/363,912.37
  6. Step 6: Final answer
    x = 208,908.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.