Finding the Fourth Proportional to 155,163.40, 232,745.10 and 76,261.30
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Solution
The fourth proportional to 155,163.40, 232,745.10 and 76,261.30 is: 114,391.95
Step by Step Solution
- Step 1: Write the proportion equation
155,163.40 : 232,745.10 = 76,261.30 : x - Step 2: Convert to fraction form
155,163.40/232,745.10 = 76,261.30/x - Step 3: Cross multiply
155,163.40x = 232,745.10 × 76,261.30 - Step 4: Simplify right side
155,163.40x = 17,749,443,894.63 - Step 5: Solve for x
x = 17,749,443,894.63/155,163.40 - Step 6: Final answer
x = 114,391.95
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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.