Finding the Fourth Proportional to 172,539.40, 258,906.30 and 67,344.70
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Solution
The fourth proportional to 172,539.40, 258,906.30 and 67,344.70 is: 101,054.99
Step by Step Solution
- Step 1: Write the proportion equation
172,539.40 : 258,906.30 = 67,344.70 : x - Step 2: Convert to fraction form
172,539.40/258,906.30 = 67,344.70/x - Step 3: Cross multiply
172,539.40x = 258,906.30 × 67,344.70 - Step 4: Simplify right side
172,539.40x = 17,435,967,101.61 - Step 5: Solve for x
x = 17,435,967,101.61/172,539.40 - Step 6: Final answer
x = 101,054.99
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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.