Finding the Fourth Proportional to 218,824.65, 328,236.98 and 69,170.06
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Solution
The fourth proportional to 218,824.65, 328,236.98 and 69,170.06 is: 103,755.08
Step by Step Solution
- Step 1: Write the proportion equation
218,824.65 : 328,236.98 = 69,170.06 : x - Step 2: Convert to fraction form
218,824.65/328,236.98 = 69,170.06/x - Step 3: Cross multiply
218,824.65x = 328,236.98 × 69,170.06 - Step 4: Simplify right side
218,824.65x = 22,704,169,613.78 - Step 5: Solve for x
x = 22,704,169,613.78/218,824.65 - Step 6: Final answer
x = 103,755.08
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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.