Finding the Fourth Proportional to 336.19, 463.70 and 247.70
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Solution
The fourth proportional to 336.19, 463.70 and 247.70 is: 341.64
Step by Step Solution
- Step 1: Write the proportion equation
336.19 : 463.70 = 247.70 : x - Step 2: Convert to fraction form
336.19/463.70 = 247.70/x - Step 3: Cross multiply
336.19x = 463.70 × 247.70 - Step 4: Simplify right side
336.19x = 114,857.25 - Step 5: Solve for x
x = 114,857.25/336.19 - Step 6: Final answer
x = 341.64
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Double scale
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1.5x scale
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.