Finding the Fourth Proportional to 156,420.20, 234,643.18 and 51,236.84
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Solution
The fourth proportional to 156,420.20, 234,643.18 and 51,236.84 is: 76,859.48
Step by Step Solution
- Step 1: Write the proportion equation
156,420.20 : 234,643.18 = 51,236.84 : x - Step 2: Convert to fraction form
156,420.20/234,643.18 = 51,236.84/x - Step 3: Cross multiply
156,420.20x = 234,643.18 × 51,236.84 - Step 4: Simplify right side
156,420.20x = 12,022,375,070.75 - Step 5: Solve for x
x = 12,022,375,070.75/156,420.20 - Step 6: Final answer
x = 76,859.48
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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.