Finding the Fourth Proportional to 218,740.80, 328,108.32 and 151,207.68
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Solution
The fourth proportional to 218,740.80, 328,108.32 and 151,207.68 is: 226,809.53
Step by Step Solution
- Step 1: Write the proportion equation
218,740.80 : 328,108.32 = 151,207.68 : x - Step 2: Convert to fraction form
218,740.80/328,108.32 = 151,207.68/x - Step 3: Cross multiply
218,740.80x = 328,108.32 × 151,207.68 - Step 4: Simplify right side
218,740.80x = 49,612,497,855.90 - Step 5: Solve for x
x = 49,612,497,855.90/218,740.80 - Step 6: Final answer
x = 226,809.53
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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.