Finding the Fourth Proportional to 290.36, 435.61 and 97.99
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Solution
The fourth proportional to 290.36, 435.61 and 97.99 is: 147.00
Step by Step Solution
- Step 1: Write the proportion equation
290.36 : 435.61 = 97.99 : x - Step 2: Convert to fraction form
290.36/435.61 = 97.99/x - Step 3: Cross multiply
290.36x = 435.61 × 97.99 - Step 4: Simplify right side
290.36x = 42,683.00 - Step 5: Solve for x
x = 42,683.00/290.36 - Step 6: Final answer
x = 147.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.