Finding the Fourth Proportional to 275,556.67, 380,255.25 and 153,056.99
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Solution
The fourth proportional to 275,556.67, 380,255.25 and 153,056.99 is: 211,211.45
Step by Step Solution
- Step 1: Write the proportion equation
275,556.67 : 380,255.25 = 153,056.99 : x - Step 2: Convert to fraction form
275,556.67/380,255.25 = 153,056.99/x - Step 3: Cross multiply
275,556.67x = 380,255.25 × 153,056.99 - Step 4: Simplify right side
275,556.67x = 58,200,723,996.70 - Step 5: Solve for x
x = 58,200,723,996.70/275,556.67 - Step 6: Final answer
x = 211,211.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.