Finding the Fourth Proportional to 218,615.26, 328,018.19 and 76,562.44
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Solution
The fourth proportional to 218,615.26, 328,018.19 and 76,562.44 is: 114,877.03
Step by Step Solution
- Step 1: Write the proportion equation
218,615.26 : 328,018.19 = 76,562.44 : x - Step 2: Convert to fraction form
218,615.26/328,018.19 = 76,562.44/x - Step 3: Cross multiply
218,615.26x = 328,018.19 × 76,562.44 - Step 4: Simplify right side
218,615.26x = 25,113,871,787.93 - Step 5: Solve for x
x = 25,113,871,787.93/218,615.26 - Step 6: Final answer
x = 114,877.03
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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.