Finding the Fourth Proportional to 341.26, 470.28 and 318.70
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Solution
The fourth proportional to 341.26, 470.28 and 318.70 is: 439.19
Step by Step Solution
- Step 1: Write the proportion equation
341.26 : 470.28 = 318.70 : x - Step 2: Convert to fraction form
341.26/470.28 = 318.70/x - Step 3: Cross multiply
341.26x = 470.28 × 318.70 - Step 4: Simplify right side
341.26x = 149,878.24 - Step 5: Solve for x
x = 149,878.24/341.26 - Step 6: Final answer
x = 439.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.