Finding the Fourth Proportional to 135.00, 202.79 and 129.65
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Solution
The fourth proportional to 135.00, 202.79 and 129.65 is: 194.75
Step by Step Solution
- Step 1: Write the proportion equation
135.00 : 202.79 = 129.65 : x - Step 2: Convert to fraction form
135.00/202.79 = 129.65/x - Step 3: Cross multiply
135.00x = 202.79 × 129.65 - Step 4: Simplify right side
135.00x = 26,291.99 - Step 5: Solve for x
x = 26,291.99/135.00 - Step 6: Final answer
x = 194.75
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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.