Finding the Fourth Proportional to 251.63, 377.41 and 68.99
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Solution
The fourth proportional to 251.63, 377.41 and 68.99 is: 103.48
Step by Step Solution
- Step 1: Write the proportion equation
251.63 : 377.41 = 68.99 : x - Step 2: Convert to fraction form
251.63/377.41 = 68.99/x - Step 3: Cross multiply
251.63x = 377.41 × 68.99 - Step 4: Simplify right side
251.63x = 26,038.59 - Step 5: Solve for x
x = 26,038.59/251.63 - Step 6: Final answer
x = 103.48
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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.