Finding the Fourth Proportional to 218,809.80, 328,214.70 and 201,702.60
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Solution
The fourth proportional to 218,809.80, 328,214.70 and 201,702.60 is: 302,553.90
Step by Step Solution
- Step 1: Write the proportion equation
218,809.80 : 328,214.70 = 201,702.60 : x - Step 2: Convert to fraction form
218,809.80/328,214.70 = 201,702.60/x - Step 3: Cross multiply
218,809.80x = 328,214.70 × 201,702.60 - Step 4: Simplify right side
218,809.80x = 66,201,758,348.22 - Step 5: Solve for x
x = 66,201,758,348.22/218,809.80 - Step 6: Final answer
x = 302,553.90
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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.