Finding the Fourth Proportional to 400.93, 553.26 and 235.18
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Solution
The fourth proportional to 400.93, 553.26 and 235.18 is: 324.53
Step by Step Solution
- Step 1: Write the proportion equation
400.93 : 553.26 = 235.18 : x - Step 2: Convert to fraction form
400.93/553.26 = 235.18/x - Step 3: Cross multiply
400.93x = 553.26 × 235.18 - Step 4: Simplify right side
400.93x = 130,115.69 - Step 5: Solve for x
x = 130,115.69/400.93 - Step 6: Final answer
x = 324.53
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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.