Finding the Fourth Proportional to 216,981.26, 325,523.84 and 90,551.18
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Solution
The fourth proportional to 216,981.26, 325,523.84 and 90,551.18 is: 135,848.45
Step by Step Solution
- Step 1: Write the proportion equation
216,981.26 : 325,523.84 = 90,551.18 : x - Step 2: Convert to fraction form
216,981.26/325,523.84 = 90,551.18/x - Step 3: Cross multiply
216,981.26x = 325,523.84 × 90,551.18 - Step 4: Simplify right side
216,981.26x = 29,476,567,830.13 - Step 5: Solve for x
x = 29,476,567,830.13/216,981.26 - Step 6: Final answer
x = 135,848.45
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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.