Finding the Fourth Proportional to 341.19, 511.79 and 135.76
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Solution
The fourth proportional to 341.19, 511.79 and 135.76 is: 203.65
Step by Step Solution
- Step 1: Write the proportion equation
341.19 : 511.79 = 135.76 : x - Step 2: Convert to fraction form
341.19/511.79 = 135.76/x - Step 3: Cross multiply
341.19x = 511.79 × 135.76 - Step 4: Simplify right side
341.19x = 69,482.49 - Step 5: Solve for x
x = 69,482.49/341.19 - Step 6: Final answer
x = 203.65
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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.