Finding the Fourth Proportional to 191.55, 264.27 and 152.21
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Solution
The fourth proportional to 191.55, 264.27 and 152.21 is: 209.99
Step by Step Solution
- Step 1: Write the proportion equation
191.55 : 264.27 = 152.21 : x - Step 2: Convert to fraction form
191.55/264.27 = 152.21/x - Step 3: Cross multiply
191.55x = 264.27 × 152.21 - Step 4: Simplify right side
191.55x = 40,223.22 - Step 5: Solve for x
x = 40,223.22/191.55 - Step 6: Final answer
x = 209.99
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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.