Finding the Fourth Proportional to 687.21, 1,030.97 and 224.99
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Solution
The fourth proportional to 687.21, 1,030.97 and 224.99 is: 337.54
Step by Step Solution
- Step 1: Write the proportion equation
687.21 : 1,030.97 = 224.99 : x - Step 2: Convert to fraction form
687.21/1,030.97 = 224.99/x - Step 3: Cross multiply
687.21x = 1,030.97 × 224.99 - Step 4: Simplify right side
687.21x = 231,961.08 - Step 5: Solve for x
x = 231,961.08/687.21 - Step 6: Final answer
x = 337.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.