Finding the Fourth Proportional to 150.18, 207.18 and 87.99
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Solution
The fourth proportional to 150.18, 207.18 and 87.99 is: 121.39
Step by Step Solution
- Step 1: Write the proportion equation
150.18 : 207.18 = 87.99 : x - Step 2: Convert to fraction form
150.18/207.18 = 87.99/x - Step 3: Cross multiply
150.18x = 207.18 × 87.99 - Step 4: Simplify right side
150.18x = 18,229.77 - Step 5: Solve for x
x = 18,229.77/150.18 - Step 6: Final answer
x = 121.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.