Finding the Fourth Proportional to 150.25, 207.36 and 84.75
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Solution
The fourth proportional to 150.25, 207.36 and 84.75 is: 116.96
Step by Step Solution
- Step 1: Write the proportion equation
150.25 : 207.36 = 84.75 : x - Step 2: Convert to fraction form
150.25/207.36 = 84.75/x - Step 3: Cross multiply
150.25x = 207.36 × 84.75 - Step 4: Simplify right side
150.25x = 17,574.00 - Step 5: Solve for x
x = 17,574.00/150.25 - Step 6: Final answer
x = 116.96
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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.