Finding the Fourth Proportional to 201,543.48, 278,121.66 and 109,663.14
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Solution
The fourth proportional to 201,543.48, 278,121.66 and 109,663.14 is: 151,330.59
Step by Step Solution
- Step 1: Write the proportion equation
201,543.48 : 278,121.66 = 109,663.14 : x - Step 2: Convert to fraction form
201,543.48/278,121.66 = 109,663.14/x - Step 3: Cross multiply
201,543.48x = 278,121.66 × 109,663.14 - Step 4: Simplify right side
201,543.48x = 30,499,693,293.99 - Step 5: Solve for x
x = 30,499,693,293.99/201,543.48 - Step 6: Final answer
x = 151,330.59
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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.