Finding the Fourth Proportional to 376.19, 518.99 and 251.93
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Solution
The fourth proportional to 376.19, 518.99 and 251.93 is: 347.56
Step by Step Solution
- Step 1: Write the proportion equation
376.19 : 518.99 = 251.93 : x - Step 2: Convert to fraction form
376.19/518.99 = 251.93/x - Step 3: Cross multiply
376.19x = 518.99 × 251.93 - Step 4: Simplify right side
376.19x = 130,749.15 - Step 5: Solve for x
x = 130,749.15/376.19 - Step 6: Final answer
x = 347.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.