Finding the Fourth Proportional to 292.42, 438.68 and 100
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Solution
The fourth proportional to 292.42, 438.68 and 100 is: 150.02
Step by Step Solution
- Step 1: Write the proportion equation
292.42 : 438.68 = 100 : x - Step 2: Convert to fraction form
292.42/438.68 = 100/x - Step 3: Cross multiply
292.42x = 438.68 × 100 - Step 4: Simplify right side
292.42x = 43,868 - Step 5: Solve for x
x = 43,868/292.42 - Step 6: Final answer
x = 150.02
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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.