Finding the Fourth Proportional to 150.52, 207.69 and 101.31
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Solution
The fourth proportional to 150.52, 207.69 and 101.31 is: 139.79
Step by Step Solution
- Step 1: Write the proportion equation
150.52 : 207.69 = 101.31 : x - Step 2: Convert to fraction form
150.52/207.69 = 101.31/x - Step 3: Cross multiply
150.52x = 207.69 × 101.31 - Step 4: Simplify right side
150.52x = 21,041.07 - Step 5: Solve for x
x = 21,041.07/150.52 - Step 6: Final answer
x = 139.79
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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.