Finding the Fourth Proportional to 466.95, 644.13 and 300.99
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Solution
The fourth proportional to 466.95, 644.13 and 300.99 is: 415.20
Step by Step Solution
- Step 1: Write the proportion equation
466.95 : 644.13 = 300.99 : x - Step 2: Convert to fraction form
466.95/644.13 = 300.99/x - Step 3: Cross multiply
466.95x = 644.13 × 300.99 - Step 4: Simplify right side
466.95x = 193,876.69 - Step 5: Solve for x
x = 193,876.69/466.95 - Step 6: Final answer
x = 415.20
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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.