Finding the Fourth Proportional to 230.99, 318.51 and 157.32
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Solution
The fourth proportional to 230.99, 318.51 and 157.32 is: 216.93
Step by Step Solution
- Step 1: Write the proportion equation
230.99 : 318.51 = 157.32 : x - Step 2: Convert to fraction form
230.99/318.51 = 157.32/x - Step 3: Cross multiply
230.99x = 318.51 × 157.32 - Step 4: Simplify right side
230.99x = 50,107.99 - Step 5: Solve for x
x = 50,107.99/230.99 - Step 6: Final answer
x = 216.93
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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.