Finding the Fourth Proportional to 247.18, 341.09 and 136.63
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Solution
The fourth proportional to 247.18, 341.09 and 136.63 is: 188.54
Step by Step Solution
- Step 1: Write the proportion equation
247.18 : 341.09 = 136.63 : x - Step 2: Convert to fraction form
247.18/341.09 = 136.63/x - Step 3: Cross multiply
247.18x = 341.09 × 136.63 - Step 4: Simplify right side
247.18x = 46,603.13 - Step 5: Solve for x
x = 46,603.13/247.18 - Step 6: Final answer
x = 188.54
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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.