Finding the Fourth Proportional to 312.06, 468.02 and 119.70
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Solution
The fourth proportional to 312.06, 468.02 and 119.70 is: 179.52
Step by Step Solution
- Step 1: Write the proportion equation
312.06 : 468.02 = 119.70 : x - Step 2: Convert to fraction form
312.06/468.02 = 119.70/x - Step 3: Cross multiply
312.06x = 468.02 × 119.70 - Step 4: Simplify right side
312.06x = 56,021.99 - Step 5: Solve for x
x = 56,021.99/312.06 - Step 6: Final answer
x = 179.52
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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.