Finding the Fourth Proportional to 215,765.59, 323,647.92 and 57,994.05
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Solution
The fourth proportional to 215,765.59, 323,647.92 and 57,994.05 is: 86,990.94
Step by Step Solution
- Step 1: Write the proportion equation
215,765.59 : 323,647.92 = 57,994.05 : x - Step 2: Convert to fraction form
215,765.59/323,647.92 = 57,994.05/x - Step 3: Cross multiply
215,765.59x = 323,647.92 × 57,994.05 - Step 4: Simplify right side
215,765.59x = 18,769,652,181.62 - Step 5: Solve for x
x = 18,769,652,181.62/215,765.59 - Step 6: Final answer
x = 86,990.94
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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.