Finding the Fourth Proportional to 203,756.67, 305,686.59 and 143,902.07
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Solution
The fourth proportional to 203,756.67, 305,686.59 and 143,902.07 is: 215,889.53
Step by Step Solution
- Step 1: Write the proportion equation
203,756.67 : 305,686.59 = 143,902.07 : x - Step 2: Convert to fraction form
203,756.67/305,686.59 = 143,902.07/x - Step 3: Cross multiply
203,756.67x = 305,686.59 × 143,902.07 - Step 4: Simplify right side
203,756.67x = 43,988,931,543.81 - Step 5: Solve for x
x = 43,988,931,543.81/203,756.67 - Step 6: Final answer
x = 215,889.53
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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.