Finding the Fourth Proportional to 335.19, 502.91 and 129.77
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Solution
The fourth proportional to 335.19, 502.91 and 129.77 is: 194.70
Step by Step Solution
- Step 1: Write the proportion equation
335.19 : 502.91 = 129.77 : x - Step 2: Convert to fraction form
335.19/502.91 = 129.77/x - Step 3: Cross multiply
335.19x = 502.91 × 129.77 - Step 4: Simplify right side
335.19x = 65,262.79 - Step 5: Solve for x
x = 65,262.79/335.19 - Step 6: Final answer
x = 194.70
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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.