Finding the Fourth Proportional to 271,321.65, 407,022.57 and 93,780.99
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Solution
The fourth proportional to 271,321.65, 407,022.57 and 93,780.99 is: 140,685.34
Step by Step Solution
- Step 1: Write the proportion equation
271,321.65 : 407,022.57 = 93,780.99 : x - Step 2: Convert to fraction form
271,321.65/407,022.57 = 93,780.99/x - Step 3: Cross multiply
271,321.65x = 407,022.57 × 93,780.99 - Step 4: Simplify right side
271,321.65x = 38,170,979,566.94 - Step 5: Solve for x
x = 38,170,979,566.94/271,321.65 - Step 6: Final answer
x = 140,685.34
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1.5x scale
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.