Finding the Fourth Proportional to 150.19, 207.26 and 84.70
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Solution
The fourth proportional to 150.19, 207.26 and 84.70 is: 116.89
Step by Step Solution
- Step 1: Write the proportion equation
150.19 : 207.26 = 84.70 : x - Step 2: Convert to fraction form
150.19/207.26 = 84.70/x - Step 3: Cross multiply
150.19x = 207.26 × 84.70 - Step 4: Simplify right side
150.19x = 17,555.08 - Step 5: Solve for x
x = 17,555.08/150.19 - Step 6: Final answer
x = 116.89
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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.