Finding the Fourth Proportional to 318,213.77, 477,005.33 and 149,431.95
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Solution
The fourth proportional to 318,213.77, 477,005.33 and 149,431.95 is: 223,999.85
Step by Step Solution
- Step 1: Write the proportion equation
318,213.77 : 477,005.33 = 149,431.95 : x - Step 2: Convert to fraction form
318,213.77/477,005.33 = 149,431.95/x - Step 3: Cross multiply
318,213.77x = 477,005.33 × 149,431.95 - Step 4: Simplify right side
318,213.77x = 71,279,835,875.13 - Step 5: Solve for x
x = 71,279,835,875.13/318,213.77 - Step 6: Final answer
x = 223,999.85
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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.