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Finding the Fourth Proportional to 303,581.44, 419,212.02 and 189,056.74

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Solution

The fourth proportional to 303,581.44, 419,212.02 and 189,056.74 is: 261,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,581.44 : 419,212.02 = 189,056.74 : x
  2. Step 2: Convert to fraction form
    303,581.44/419,212.02 = 189,056.74/x
  3. Step 3: Cross multiply
    303,581.44x = 419,212.02 × 189,056.74
  4. Step 4: Simplify right side
    303,581.44x = 79,254,857,870.01
  5. Step 5: Solve for x
    x = 79,254,857,870.01/303,581.44
  6. Step 6: Final answer
    x = 261,066.22

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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.