Finding the Fourth Proportional to 213,091.02, 319,553.43 and 79,898.70
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Solution
The fourth proportional to 213,091.02, 319,553.43 and 79,898.70 is: 119,816.89
Step by Step Solution
- Step 1: Write the proportion equation
213,091.02 : 319,553.43 = 79,898.70 : x - Step 2: Convert to fraction form
213,091.02/319,553.43 = 79,898.70/x - Step 3: Cross multiply
213,091.02x = 319,553.43 × 79,898.70 - Step 4: Simplify right side
213,091.02x = 25,531,903,637.54 - Step 5: Solve for x
x = 25,531,903,637.54/213,091.02 - Step 6: Final answer
x = 119,816.89
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1.5x scale
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.