Finding the Fourth Proportional to 369.68, 556.74 and 312.26
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Solution
The fourth proportional to 369.68, 556.74 and 312.26 is: 470.27
Step by Step Solution
- Step 1: Write the proportion equation
369.68 : 556.74 = 312.26 : x - Step 2: Convert to fraction form
369.68/556.74 = 312.26/x - Step 3: Cross multiply
369.68x = 556.74 × 312.26 - Step 4: Simplify right side
369.68x = 173,847.63 - Step 5: Solve for x
x = 173,847.63/369.68 - Step 6: Final answer
x = 470.27
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.