Finding the Fourth Proportional to 270.35, 405.35 and 125.99
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Solution
The fourth proportional to 270.35, 405.35 and 125.99 is: 188.90
Step by Step Solution
- Step 1: Write the proportion equation
270.35 : 405.35 = 125.99 : x - Step 2: Convert to fraction form
270.35/405.35 = 125.99/x - Step 3: Cross multiply
270.35x = 405.35 × 125.99 - Step 4: Simplify right side
270.35x = 51,069.42 - Step 5: Solve for x
x = 51,069.42/270.35 - Step 6: Final answer
x = 188.90
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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.