Finding the Fourth Proportional to 275,817.63, 413,750.25 and 76,138.05
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Solution
The fourth proportional to 275,817.63, 413,750.25 and 76,138.05 is: 114,213.65
Step by Step Solution
- Step 1: Write the proportion equation
275,817.63 : 413,750.25 = 76,138.05 : x - Step 2: Convert to fraction form
275,817.63/413,750.25 = 76,138.05/x - Step 3: Cross multiply
275,817.63x = 413,750.25 × 76,138.05 - Step 4: Simplify right side
275,817.63x = 31,502,137,824.04 - Step 5: Solve for x
x = 31,502,137,824.04/275,817.63 - Step 6: Final answer
x = 114,213.65
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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.