Finding the Fourth Proportional to 218,812.30, 328,218.45 and 201,705.10
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Solution
The fourth proportional to 218,812.30, 328,218.45 and 201,705.10 is: 302,557.65
Step by Step Solution
- Step 1: Write the proportion equation
218,812.30 : 328,218.45 = 201,705.10 : x - Step 2: Convert to fraction form
218,812.30/328,218.45 = 201,705.10/x - Step 3: Cross multiply
218,812.30x = 328,218.45 × 201,705.10 - Step 4: Simplify right side
218,812.30x = 66,203,335,279.10 - Step 5: Solve for x
x = 66,203,335,279.10/218,812.30 - Step 6: Final answer
x = 302,557.65
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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.