Finding the Fourth Proportional to 397,729.98, 548,861.67 and 218,881.98
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Solution
The fourth proportional to 397,729.98, 548,861.67 and 218,881.98 is: 302,053.99
Step by Step Solution
- Step 1: Write the proportion equation
397,729.98 : 548,861.67 = 218,881.98 : x - Step 2: Convert to fraction form
397,729.98/548,861.67 = 218,881.98/x - Step 3: Cross multiply
397,729.98x = 548,861.67 × 218,881.98 - Step 4: Simplify right side
397,729.98x = 120,135,929,075.71 - Step 5: Solve for x
x = 120,135,929,075.71/397,729.98 - Step 6: Final answer
x = 302,053.99
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1.5x scale
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.