Finding the Fourth Proportional to 292.63, 438.99 and 130.31
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Solution
The fourth proportional to 292.63, 438.99 and 130.31 is: 195.49
Step by Step Solution
- Step 1: Write the proportion equation
292.63 : 438.99 = 130.31 : x - Step 2: Convert to fraction form
292.63/438.99 = 130.31/x - Step 3: Cross multiply
292.63x = 438.99 × 130.31 - Step 4: Simplify right side
292.63x = 57,204.79 - Step 5: Solve for x
x = 57,204.79/292.63 - Step 6: Final answer
x = 195.49
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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.