Finding the Fourth Proportional to 292.02, 438.09 and 154.99
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Solution
The fourth proportional to 292.02, 438.09 and 154.99 is: 232.52
Step by Step Solution
- Step 1: Write the proportion equation
292.02 : 438.09 = 154.99 : x - Step 2: Convert to fraction form
292.02/438.09 = 154.99/x - Step 3: Cross multiply
292.02x = 438.09 × 154.99 - Step 4: Simplify right side
292.02x = 67,899.57 - Step 5: Solve for x
x = 67,899.57/292.02 - Step 6: Final answer
x = 232.52
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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.