Finding the Fourth Proportional to 150.39, 207.53 and 83.99
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Solution
The fourth proportional to 150.39, 207.53 and 83.99 is: 115.91
Step by Step Solution
- Step 1: Write the proportion equation
150.39 : 207.53 = 83.99 : x - Step 2: Convert to fraction form
150.39/207.53 = 83.99/x - Step 3: Cross multiply
150.39x = 207.53 × 83.99 - Step 4: Simplify right side
150.39x = 17,431.52 - Step 5: Solve for x
x = 17,431.52/150.39 - Step 6: Final answer
x = 115.91
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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.