Finding the Fourth Proportional to 190,672.33, 285,896.34 and 72,351.99
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Solution
The fourth proportional to 190,672.33, 285,896.34 and 72,351.99 is: 108,485.43
Step by Step Solution
- Step 1: Write the proportion equation
190,672.33 : 285,896.34 = 72,351.99 : x - Step 2: Convert to fraction form
190,672.33/285,896.34 = 72,351.99/x - Step 3: Cross multiply
190,672.33x = 285,896.34 × 72,351.99 - Step 4: Simplify right side
190,672.33x = 20,685,169,132.72 - Step 5: Solve for x
x = 20,685,169,132.72/190,672.33 - Step 6: Final answer
x = 108,485.43
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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.