Finding the Fourth Proportional to 258,188.68, 387,283.32 and 80,696.62
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Solution
The fourth proportional to 258,188.68, 387,283.32 and 80,696.62 is: 121,045.02
Step by Step Solution
- Step 1: Write the proportion equation
258,188.68 : 387,283.32 = 80,696.62 : x - Step 2: Convert to fraction form
258,188.68/387,283.32 = 80,696.62/x - Step 3: Cross multiply
258,188.68x = 387,283.32 × 80,696.62 - Step 4: Simplify right side
258,188.68x = 31,252,452,566.48 - Step 5: Solve for x
x = 31,252,452,566.48/258,188.68 - Step 6: Final answer
x = 121,045.02
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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.