Finding the Fourth Proportional to 292.05, 438.08 and 75.63
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Solution
The fourth proportional to 292.05, 438.08 and 75.63 is: 113.45
Step by Step Solution
- Step 1: Write the proportion equation
292.05 : 438.08 = 75.63 : x - Step 2: Convert to fraction form
292.05/438.08 = 75.63/x - Step 3: Cross multiply
292.05x = 438.08 × 75.63 - Step 4: Simplify right side
292.05x = 33,131.99 - Step 5: Solve for x
x = 33,131.99/292.05 - Step 6: Final answer
x = 113.45
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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.