Finding the Fourth Proportional to 340.84, 511.08 and 212.68
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Solution
The fourth proportional to 340.84, 511.08 and 212.68 is: 318.91
Step by Step Solution
- Step 1: Write the proportion equation
340.84 : 511.08 = 212.68 : x - Step 2: Convert to fraction form
340.84/511.08 = 212.68/x - Step 3: Cross multiply
340.84x = 511.08 × 212.68 - Step 4: Simplify right side
340.84x = 108,696.49 - Step 5: Solve for x
x = 108,696.49/340.84 - Step 6: Final answer
x = 318.91
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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.