Finding the Fourth Proportional to 201,822.75, 278,515.47 and 116,989.02
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Solution
The fourth proportional to 201,822.75, 278,515.47 and 116,989.02 is: 161,444.89
Step by Step Solution
- Step 1: Write the proportion equation
201,822.75 : 278,515.47 = 116,989.02 : x - Step 2: Convert to fraction form
201,822.75/278,515.47 = 116,989.02/x - Step 3: Cross multiply
201,822.75x = 278,515.47 × 116,989.02 - Step 4: Simplify right side
201,822.75x = 32,583,251,890.14 - Step 5: Solve for x
x = 32,583,251,890.14/201,822.75 - Step 6: Final answer
x = 161,444.89
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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.