Finding the Fourth Proportional to 214,711.74, 321,898.23 and 135,659.34
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Solution
The fourth proportional to 214,711.74, 321,898.23 and 135,659.34 is: 203,381.99
Step by Step Solution
- Step 1: Write the proportion equation
214,711.74 : 321,898.23 = 135,659.34 : x - Step 2: Convert to fraction form
214,711.74/321,898.23 = 135,659.34/x - Step 3: Cross multiply
214,711.74x = 321,898.23 × 135,659.34 - Step 4: Simplify right side
214,711.74x = 43,668,501,428.97 - Step 5: Solve for x
x = 43,668,501,428.97/214,711.74 - Step 6: Final answer
x = 203,381.99
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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.