Finding the Fourth Proportional to 628.08, 866.74 and 344.49
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Solution
The fourth proportional to 628.08, 866.74 and 344.49 is: 475.39
Step by Step Solution
- Step 1: Write the proportion equation
628.08 : 866.74 = 344.49 : x - Step 2: Convert to fraction form
628.08/866.74 = 344.49/x - Step 3: Cross multiply
628.08x = 866.74 × 344.49 - Step 4: Simplify right side
628.08x = 298,583.26 - Step 5: Solve for x
x = 298,583.26/628.08 - Step 6: Final answer
x = 475.39
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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.