Finding the Fourth Proportional to 192,706.74, 288,988.35 and 66,311.70
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Solution
The fourth proportional to 192,706.74, 288,988.35 and 66,311.70 is: 99,442.86
Step by Step Solution
- Step 1: Write the proportion equation
192,706.74 : 288,988.35 = 66,311.70 : x - Step 2: Convert to fraction form
192,706.74/288,988.35 = 66,311.70/x - Step 3: Cross multiply
192,706.74x = 288,988.35 × 66,311.70 - Step 4: Simplify right side
192,706.74x = 19,163,308,768.70 - Step 5: Solve for x
x = 19,163,308,768.70/192,706.74 - Step 6: Final answer
x = 99,442.86
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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.