Finding the Fourth Proportional to 216,988.58, 299,375.04 and 140,566.26
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Solution
The fourth proportional to 216,988.58, 299,375.04 and 140,566.26 is: 193,936.61
Step by Step Solution
- Step 1: Write the proportion equation
216,988.58 : 299,375.04 = 140,566.26 : x - Step 2: Convert to fraction form
216,988.58/299,375.04 = 140,566.26/x - Step 3: Cross multiply
216,988.58x = 299,375.04 × 140,566.26 - Step 4: Simplify right side
216,988.58x = 42,082,029,710.15 - Step 5: Solve for x
x = 42,082,029,710.15/216,988.58 - Step 6: Final answer
x = 193,936.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.