Finding the Fourth Proportional to 400.79, 552.92 and 235.08
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Solution
The fourth proportional to 400.79, 552.92 and 235.08 is: 324.31
Step by Step Solution
- Step 1: Write the proportion equation
400.79 : 552.92 = 235.08 : x - Step 2: Convert to fraction form
400.79/552.92 = 235.08/x - Step 3: Cross multiply
400.79x = 552.92 × 235.08 - Step 4: Simplify right side
400.79x = 129,979.26 - Step 5: Solve for x
x = 129,979.26/400.79 - Step 6: Final answer
x = 324.31
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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.