Finding the Fourth Proportional to 312.64, 468.99 and 107.26
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Solution
The fourth proportional to 312.64, 468.99 and 107.26 is: 160.90
Step by Step Solution
- Step 1: Write the proportion equation
312.64 : 468.99 = 107.26 : x - Step 2: Convert to fraction form
312.64/468.99 = 107.26/x - Step 3: Cross multiply
312.64x = 468.99 × 107.26 - Step 4: Simplify right side
312.64x = 50,303.87 - Step 5: Solve for x
x = 50,303.87/312.64 - Step 6: Final answer
x = 160.90
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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.