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Finding the Fourth Proportional to 273,420.78, 377,311.80 and 149,236.98

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Solution

The fourth proportional to 273,420.78, 377,311.80 and 149,236.98 is: 205,942.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,420.78 : 377,311.80 = 149,236.98 : x
  2. Step 2: Convert to fraction form
    273,420.78/377,311.80 = 149,236.98/x
  3. Step 3: Cross multiply
    273,420.78x = 377,311.80 × 149,236.98
  4. Step 4: Simplify right side
    273,420.78x = 56,308,873,550.36
  5. Step 5: Solve for x
    x = 56,308,873,550.36/273,420.78
  6. Step 6: Final answer
    x = 205,942.19

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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.