Finding the Fourth Proportional to 340.78, 511.08 and 157.99
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Solution
The fourth proportional to 340.78, 511.08 and 157.99 is: 236.94
Step by Step Solution
- Step 1: Write the proportion equation
340.78 : 511.08 = 157.99 : x - Step 2: Convert to fraction form
340.78/511.08 = 157.99/x - Step 3: Cross multiply
340.78x = 511.08 × 157.99 - Step 4: Simplify right side
340.78x = 80,744.74 - Step 5: Solve for x
x = 80,744.74/340.78 - Step 6: Final answer
x = 236.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.