Finding the Fourth Proportional to 258,211.67, 387,316.73 and 68,671.88
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Solution
The fourth proportional to 258,211.67, 387,316.73 and 68,671.88 is: 103,007.61
Step by Step Solution
- Step 1: Write the proportion equation
258,211.67 : 387,316.73 = 68,671.88 : x - Step 2: Convert to fraction form
258,211.67/387,316.73 = 68,671.88/x - Step 3: Cross multiply
258,211.67x = 387,316.73 × 68,671.88 - Step 4: Simplify right side
258,211.67x = 26,597,765,982.13 - Step 5: Solve for x
x = 26,597,765,982.13/258,211.67 - Step 6: Final answer
x = 103,007.61
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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.