Finding the Fourth Proportional to 289,304.51, 399,237.57 and 161,982.23
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Solution
The fourth proportional to 289,304.51, 399,237.57 and 161,982.23 is: 223,533.99
Step by Step Solution
- Step 1: Write the proportion equation
289,304.51 : 399,237.57 = 161,982.23 : x - Step 2: Convert to fraction form
289,304.51/399,237.57 = 161,982.23/x - Step 3: Cross multiply
289,304.51x = 399,237.57 × 161,982.23 - Step 4: Simplify right side
289,304.51x = 64,669,389,892.19 - Step 5: Solve for x
x = 64,669,389,892.19/289,304.51 - Step 6: Final answer
x = 223,533.99
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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.