Finding the Fourth Proportional to 207.06, 285.70 and 124.14
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Solution
The fourth proportional to 207.06, 285.70 and 124.14 is: 171.28
Step by Step Solution
- Step 1: Write the proportion equation
207.06 : 285.70 = 124.14 : x - Step 2: Convert to fraction form
207.06/285.70 = 124.14/x - Step 3: Cross multiply
207.06x = 285.70 × 124.14 - Step 4: Simplify right side
207.06x = 35,466.18 - Step 5: Solve for x
x = 35,466.18/207.06 - Step 6: Final answer
x = 171.28
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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.