Finding the Fourth Proportional to 261,361.92, 391,996.02 and 69,237.62
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Solution
The fourth proportional to 261,361.92, 391,996.02 and 69,237.62 is: 103,844.02
Step by Step Solution
- Step 1: Write the proportion equation
261,361.92 : 391,996.02 = 69,237.62 : x - Step 2: Convert to fraction form
261,361.92/391,996.02 = 69,237.62/x - Step 3: Cross multiply
261,361.92x = 391,996.02 × 69,237.62 - Step 4: Simplify right side
261,361.92x = 27,140,871,474.27 - Step 5: Solve for x
x = 27,140,871,474.27/261,361.92 - Step 6: Final answer
x = 103,844.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.