Finding the Fourth Proportional to 215,845.20, 323,767.80 and 122,533.20
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Solution
The fourth proportional to 215,845.20, 323,767.80 and 122,533.20 is: 183,799.80
Step by Step Solution
- Step 1: Write the proportion equation
215,845.20 : 323,767.80 = 122,533.20 : x - Step 2: Convert to fraction form
215,845.20/323,767.80 = 122,533.20/x - Step 3: Cross multiply
215,845.20x = 323,767.80 × 122,533.20 - Step 4: Simplify right side
215,845.20x = 39,672,304,590.96 - Step 5: Solve for x
x = 39,672,304,590.96/215,845.20 - Step 6: Final answer
x = 183,799.80
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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.