Finding the Fourth Proportional to 150.13, 207.19 and 91.14
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Solution
The fourth proportional to 150.13, 207.19 and 91.14 is: 125.78
Step by Step Solution
- Step 1: Write the proportion equation
150.13 : 207.19 = 91.14 : x - Step 2: Convert to fraction form
150.13/207.19 = 91.14/x - Step 3: Cross multiply
150.13x = 207.19 × 91.14 - Step 4: Simplify right side
150.13x = 18,883.30 - Step 5: Solve for x
x = 18,883.30/150.13 - Step 6: Final answer
x = 125.78
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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.