Finding the Fourth Proportional to 198,577.24, 297,948.90 and 86,351.84
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Solution
The fourth proportional to 198,577.24, 297,948.90 and 86,351.84 is: 129,563.87
Step by Step Solution
- Step 1: Write the proportion equation
198,577.24 : 297,948.90 = 86,351.84 : x - Step 2: Convert to fraction form
198,577.24/297,948.90 = 86,351.84/x - Step 3: Cross multiply
198,577.24x = 297,948.90 × 86,351.84 - Step 4: Simplify right side
198,577.24x = 25,728,435,740.98 - Step 5: Solve for x
x = 25,728,435,740.98/198,577.24 - Step 6: Final answer
x = 129,563.87
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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.