Finding the Fourth Proportional to 151,433.66, 208,975.62 and 83,456.92
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Solution
The fourth proportional to 151,433.66, 208,975.62 and 83,456.92 is: 115,168.99
Step by Step Solution
- Step 1: Write the proportion equation
151,433.66 : 208,975.62 = 83,456.92 : x - Step 2: Convert to fraction form
151,433.66/208,975.62 = 83,456.92/x - Step 3: Cross multiply
151,433.66x = 208,975.62 × 83,456.92 - Step 4: Simplify right side
151,433.66x = 17,440,461,600.29 - Step 5: Solve for x
x = 17,440,461,600.29/151,433.66 - Step 6: Final answer
x = 115,168.99
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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.