Finding the Fourth Proportional to 400.97, 553.35 and 235.19
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Solution
The fourth proportional to 400.97, 553.35 and 235.19 is: 324.57
Step by Step Solution
- Step 1: Write the proportion equation
400.97 : 553.35 = 235.19 : x - Step 2: Convert to fraction form
400.97/553.35 = 235.19/x - Step 3: Cross multiply
400.97x = 553.35 × 235.19 - Step 4: Simplify right side
400.97x = 130,139.62 - Step 5: Solve for x
x = 130,139.62/400.97 - Step 6: Final answer
x = 324.57
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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.