Finding the Fourth Proportional to 207.06, 285.63 and 119.70
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Solution
The fourth proportional to 207.06, 285.63 and 119.70 is: 165.12
Step by Step Solution
- Step 1: Write the proportion equation
207.06 : 285.63 = 119.70 : x - Step 2: Convert to fraction form
207.06/285.63 = 119.70/x - Step 3: Cross multiply
207.06x = 285.63 × 119.70 - Step 4: Simplify right side
207.06x = 34,189.91 - Step 5: Solve for x
x = 34,189.91/207.06 - Step 6: Final answer
x = 165.12
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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.