Finding the Fourth Proportional to 340.11, 509.99 and 157.32
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Solution
The fourth proportional to 340.11, 509.99 and 157.32 is: 235.90
Step by Step Solution
- Step 1: Write the proportion equation
340.11 : 509.99 = 157.32 : x - Step 2: Convert to fraction form
340.11/509.99 = 157.32/x - Step 3: Cross multiply
340.11x = 509.99 × 157.32 - Step 4: Simplify right side
340.11x = 80,230.84 - Step 5: Solve for x
x = 80,230.84/340.11 - Step 6: Final answer
x = 235.90
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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.