Finding the Fourth Proportional to 281,553.01, 388,448.11 and 160,609.18
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Solution
The fourth proportional to 281,553.01, 388,448.11 and 160,609.18 is: 221,586.45
Step by Step Solution
- Step 1: Write the proportion equation
281,553.01 : 388,448.11 = 160,609.18 : x - Step 2: Convert to fraction form
281,553.01/388,448.11 = 160,609.18/x - Step 3: Cross multiply
281,553.01x = 388,448.11 × 160,609.18 - Step 4: Simplify right side
281,553.01x = 62,388,331,474.20 - Step 5: Solve for x
x = 62,388,331,474.20/281,553.01 - Step 6: Final answer
x = 221,586.45
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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.