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Finding the Fourth Proportional to 221,333.94, 331,313.66 and 119,880.01

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Solution

The fourth proportional to 221,333.94, 331,313.66 and 119,880.01 is: 179,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,333.94 : 331,313.66 = 119,880.01 : x
  2. Step 2: Convert to fraction form
    221,333.94/331,313.66 = 119,880.01/x
  3. Step 3: Cross multiply
    221,333.94x = 331,313.66 × 119,880.01
  4. Step 4: Simplify right side
    221,333.94x = 39,717,884,873.94
  5. Step 5: Solve for x
    x = 39,717,884,873.94/221,333.94
  6. Step 6: Final answer
    x = 179,447.78

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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.