Finding the Fourth Proportional to 206,158.62, 308,946.33 and 87,710.70
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Solution
The fourth proportional to 206,158.62, 308,946.33 and 87,710.70 is: 131,441.99
Step by Step Solution
- Step 1: Write the proportion equation
206,158.62 : 308,946.33 = 87,710.70 : x - Step 2: Convert to fraction form
206,158.62/308,946.33 = 87,710.70/x - Step 3: Cross multiply
206,158.62x = 308,946.33 × 87,710.70 - Step 4: Simplify right side
206,158.62x = 27,097,898,866.73 - Step 5: Solve for x
x = 27,097,898,866.73/206,158.62 - Step 6: Final answer
x = 131,441.99
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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.