Finding the Fourth Proportional to 310.07, 427.99 and 222.99
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Solution
The fourth proportional to 310.07, 427.99 and 222.99 is: 307.80
Step by Step Solution
- Step 1: Write the proportion equation
310.07 : 427.99 = 222.99 : x - Step 2: Convert to fraction form
310.07/427.99 = 222.99/x - Step 3: Cross multiply
310.07x = 427.99 × 222.99 - Step 4: Simplify right side
310.07x = 95,437.49 - Step 5: Solve for x
x = 95,437.49/310.07 - Step 6: Final answer
x = 307.80
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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.