Finding the Fourth Proportional to 220,992.57, 331,539.84 and 69,181.02
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Solution
The fourth proportional to 220,992.57, 331,539.84 and 69,181.02 is: 103,787.49
Step by Step Solution
- Step 1: Write the proportion equation
220,992.57 : 331,539.84 = 69,181.02 : x - Step 2: Convert to fraction form
220,992.57/331,539.84 = 69,181.02/x - Step 3: Cross multiply
220,992.57x = 331,539.84 × 69,181.02 - Step 4: Simplify right side
220,992.57x = 22,936,264,301.84 - Step 5: Solve for x
x = 22,936,264,301.84/220,992.57 - Step 6: Final answer
x = 103,787.49
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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.