Finding the Fourth Proportional to 622.84, 934.26 and 189.99
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Solution
The fourth proportional to 622.84, 934.26 and 189.99 is: 284.99
Step by Step Solution
- Step 1: Write the proportion equation
622.84 : 934.26 = 189.99 : x - Step 2: Convert to fraction form
622.84/934.26 = 189.99/x - Step 3: Cross multiply
622.84x = 934.26 × 189.99 - Step 4: Simplify right side
622.84x = 177,499.11 - Step 5: Solve for x
x = 177,499.11/622.84 - Step 6: Final answer
x = 284.99
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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.