Finding the Fourth Proportional to 258,409.68, 387,583.75 and 68,884.26
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Solution
The fourth proportional to 258,409.68, 387,583.75 and 68,884.26 is: 103,318.18
Step by Step Solution
- Step 1: Write the proportion equation
258,409.68 : 387,583.75 = 68,884.26 : x - Step 2: Convert to fraction form
258,409.68/387,583.75 = 68,884.26/x - Step 3: Cross multiply
258,409.68x = 387,583.75 × 68,884.26 - Step 4: Simplify right side
258,409.68x = 26,698,418,439.44 - Step 5: Solve for x
x = 26,698,418,439.44/258,409.68 - Step 6: Final answer
x = 103,318.18
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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.