Finding the Fourth Proportional to 150.19, 207.26 and 81.19
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Solution
The fourth proportional to 150.19, 207.26 and 81.19 is: 112.04
Step by Step Solution
- Step 1: Write the proportion equation
150.19 : 207.26 = 81.19 : x - Step 2: Convert to fraction form
150.19/207.26 = 81.19/x - Step 3: Cross multiply
150.19x = 207.26 × 81.19 - Step 4: Simplify right side
150.19x = 16,826.82 - Step 5: Solve for x
x = 16,826.82/150.19 - Step 6: Final answer
x = 112.04
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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.