Finding the Fourth Proportional to 201,996.68, 278,813.94 and 117,132.68
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Solution
The fourth proportional to 201,996.68, 278,813.94 and 117,132.68 is: 161,677.03
Step by Step Solution
- Step 1: Write the proportion equation
201,996.68 : 278,813.94 = 117,132.68 : x - Step 2: Convert to fraction form
201,996.68/278,813.94 = 117,132.68/x - Step 3: Cross multiply
201,996.68x = 278,813.94 × 117,132.68 - Step 4: Simplify right side
201,996.68x = 32,658,224,013.56 - Step 5: Solve for x
x = 32,658,224,013.56/201,996.68 - Step 6: Final answer
x = 161,677.03
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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.