Finding the Fourth Proportional to 258,608.79, 387,909.30 and 116,353.62
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Solution
The fourth proportional to 258,608.79, 387,909.30 and 116,353.62 is: 174,528.68
Step by Step Solution
- Step 1: Write the proportion equation
258,608.79 : 387,909.30 = 116,353.62 : x - Step 2: Convert to fraction form
258,608.79/387,909.30 = 116,353.62/x - Step 3: Cross multiply
258,608.79x = 387,909.30 × 116,353.62 - Step 4: Simplify right side
258,608.79x = 45,134,651,286.67 - Step 5: Solve for x
x = 45,134,651,286.67/258,608.79 - Step 6: Final answer
x = 174,528.68
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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.