Finding the Fourth Proportional to 201,864.84, 278,569.80 and 116,989.80
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Solution
The fourth proportional to 201,864.84, 278,569.80 and 116,989.80 is: 161,443.79
Step by Step Solution
- Step 1: Write the proportion equation
201,864.84 : 278,569.80 = 116,989.80 : x - Step 2: Convert to fraction form
201,864.84/278,569.80 = 116,989.80/x - Step 3: Cross multiply
201,864.84x = 278,569.80 × 116,989.80 - Step 4: Simplify right side
201,864.84x = 32,589,825,188.04 - Step 5: Solve for x
x = 32,589,825,188.04/201,864.84 - Step 6: Final answer
x = 161,443.79
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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.