Finding the Fourth Proportional to 207.83, 312.19 and 199.94
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Solution
The fourth proportional to 207.83, 312.19 and 199.94 is: 300.32
Step by Step Solution
- Step 1: Write the proportion equation
207.83 : 312.19 = 199.94 : x - Step 2: Convert to fraction form
207.83/312.19 = 199.94/x - Step 3: Cross multiply
207.83x = 312.19 × 199.94 - Step 4: Simplify right side
207.83x = 62,417.21 - Step 5: Solve for x
x = 62,417.21/207.83 - Step 6: Final answer
x = 300.32
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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.