Finding the Fourth Proportional to 210,192.36, 289,989.64 and 161,809.08
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Solution
The fourth proportional to 210,192.36, 289,989.64 and 161,809.08 is: 223,238.17
Step by Step Solution
- Step 1: Write the proportion equation
210,192.36 : 289,989.64 = 161,809.08 : x - Step 2: Convert to fraction form
210,192.36/289,989.64 = 161,809.08/x - Step 3: Cross multiply
210,192.36x = 289,989.64 × 161,809.08 - Step 4: Simplify right side
210,192.36x = 46,922,956,857.93 - Step 5: Solve for x
x = 46,922,956,857.93/210,192.36 - Step 6: Final answer
x = 223,238.17
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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.