Finding the Fourth Proportional to 203,617.60, 305,386.14 and 68,668.36
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Solution
The fourth proportional to 203,617.60, 305,386.14 and 68,668.36 is: 102,988.96
Step by Step Solution
- Step 1: Write the proportion equation
203,617.60 : 305,386.14 = 68,668.36 : x - Step 2: Convert to fraction form
203,617.60/305,386.14 = 68,668.36/x - Step 3: Cross multiply
203,617.60x = 305,386.14 × 68,668.36 - Step 4: Simplify right side
203,617.60x = 20,970,365,400.53 - Step 5: Solve for x
x = 20,970,365,400.53/203,617.60 - Step 6: Final answer
x = 102,988.96
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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.