Finding the Fourth Proportional to 307.92, 424.97 and 224.99
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Solution
The fourth proportional to 307.92, 424.97 and 224.99 is: 310.51
Step by Step Solution
- Step 1: Write the proportion equation
307.92 : 424.97 = 224.99 : x - Step 2: Convert to fraction form
307.92/424.97 = 224.99/x - Step 3: Cross multiply
307.92x = 424.97 × 224.99 - Step 4: Simplify right side
307.92x = 95,611.84 - Step 5: Solve for x
x = 95,611.84/307.92 - Step 6: Final answer
x = 310.51
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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.