Finding the Fourth Proportional to 251.29, 347.21 and 207.73
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Solution
The fourth proportional to 251.29, 347.21 and 207.73 is: 287.02
Step by Step Solution
- Step 1: Write the proportion equation
251.29 : 347.21 = 207.73 : x - Step 2: Convert to fraction form
251.29/347.21 = 207.73/x - Step 3: Cross multiply
251.29x = 347.21 × 207.73 - Step 4: Simplify right side
251.29x = 72,125.93 - Step 5: Solve for x
x = 72,125.93/251.29 - Step 6: Final answer
x = 287.02
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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.