Finding the Fourth Proportional to 285,229.23, 393,614.99 and 154,406.54
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Solution
The fourth proportional to 285,229.23, 393,614.99 and 154,406.54 is: 213,080.29
Step by Step Solution
- Step 1: Write the proportion equation
285,229.23 : 393,614.99 = 154,406.54 : x - Step 2: Convert to fraction form
285,229.23/393,614.99 = 154,406.54/x - Step 3: Cross multiply
285,229.23x = 393,614.99 × 154,406.54 - Step 4: Simplify right side
285,229.23x = 60,776,725,957.93 - Step 5: Solve for x
x = 60,776,725,957.93/285,229.23 - Step 6: Final answer
x = 213,080.29
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1.5x scale
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.