Finding the Fourth Proportional to 201,705.70, 302,558.55 and 131,721.70
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Solution
The fourth proportional to 201,705.70, 302,558.55 and 131,721.70 is: 197,582.55
Step by Step Solution
- Step 1: Write the proportion equation
201,705.70 : 302,558.55 = 131,721.70 : x - Step 2: Convert to fraction form
201,705.70/302,558.55 = 131,721.70/x - Step 3: Cross multiply
201,705.70x = 302,558.55 × 131,721.70 - Step 4: Simplify right side
201,705.70x = 39,853,526,555.54 - Step 5: Solve for x
x = 39,853,526,555.54/201,705.70 - Step 6: Final answer
x = 197,582.55
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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.