Finding the Fourth Proportional to 193.60, 290.08 and 129.44
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Solution
The fourth proportional to 193.60, 290.08 and 129.44 is: 193.95
Step by Step Solution
- Step 1: Write the proportion equation
193.60 : 290.08 = 129.44 : x - Step 2: Convert to fraction form
193.60/290.08 = 129.44/x - Step 3: Cross multiply
193.60x = 290.08 × 129.44 - Step 4: Simplify right side
193.60x = 37,547.96 - Step 5: Solve for x
x = 37,547.96/193.60 - Step 6: Final answer
x = 193.95
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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.