Finding the Fourth Proportional to 215,827.60, 323,765.70 and 66,066.70
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Solution
The fourth proportional to 215,827.60, 323,765.70 and 66,066.70 is: 99,107.49
Step by Step Solution
- Step 1: Write the proportion equation
215,827.60 : 323,765.70 = 66,066.70 : x - Step 2: Convert to fraction form
215,827.60/323,765.70 = 66,066.70/x - Step 3: Cross multiply
215,827.60x = 323,765.70 × 66,066.70 - Step 4: Simplify right side
215,827.60x = 21,390,131,372.19 - Step 5: Solve for x
x = 21,390,131,372.19/215,827.60 - Step 6: Final answer
x = 99,107.49
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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.