Finding the Fourth Proportional to 400.19, 552.36 and 252.90
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Solution
The fourth proportional to 400.19, 552.36 and 252.90 is: 349.07
Step by Step Solution
- Step 1: Write the proportion equation
400.19 : 552.36 = 252.90 : x - Step 2: Convert to fraction form
400.19/552.36 = 252.90/x - Step 3: Cross multiply
400.19x = 552.36 × 252.90 - Step 4: Simplify right side
400.19x = 139,691.84 - Step 5: Solve for x
x = 139,691.84/400.19 - Step 6: Final answer
x = 349.07
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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.