Finding the Fourth Proportional to 342.36, 511.62 and 276.75
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Solution
The fourth proportional to 342.36, 511.62 and 276.75 is: 413.57
Step by Step Solution
- Step 1: Write the proportion equation
342.36 : 511.62 = 276.75 : x - Step 2: Convert to fraction form
342.36/511.62 = 276.75/x - Step 3: Cross multiply
342.36x = 511.62 × 276.75 - Step 4: Simplify right side
342.36x = 141,590.84 - Step 5: Solve for x
x = 141,590.84/342.36 - Step 6: Final answer
x = 413.57
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.