Finding the Fourth Proportional to 79.49, 119.00 and 43.31
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Solution
The fourth proportional to 79.49, 119.00 and 43.31 is: 64.84
Step by Step Solution
- Step 1: Write the proportion equation
79.49 : 119.00 = 43.31 : x - Step 2: Convert to fraction form
79.49/119.00 = 43.31/x - Step 3: Cross multiply
79.49x = 119.00 × 43.31 - Step 4: Simplify right side
79.49x = 5,154.30 - Step 5: Solve for x
x = 5,154.30/79.49 - Step 6: Final answer
x = 64.84
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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.