Finding the Fourth Proportional to 207.99, 312 and 156.63
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Solution
The fourth proportional to 207.99, 312 and 156.63 is: 234.96
Step by Step Solution
- Step 1: Write the proportion equation
207.99 : 312 = 156.63 : x - Step 2: Convert to fraction form
207.99/312 = 156.63/x - Step 3: Cross multiply
207.99x = 312 × 156.63 - Step 4: Simplify right side
207.99x = 48,868.56 - Step 5: Solve for x
x = 48,868.56/207.99 - Step 6: Final answer
x = 234.96
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.