Finding the Fourth Proportional to 256,838.58, 354,463.92 and 147,946.68
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Solution
The fourth proportional to 256,838.58, 354,463.92 and 147,946.68 is: 204,181.79
Step by Step Solution
- Step 1: Write the proportion equation
256,838.58 : 354,463.92 = 147,946.68 : x - Step 2: Convert to fraction form
256,838.58/354,463.92 = 147,946.68/x - Step 3: Cross multiply
256,838.58x = 354,463.92 × 147,946.68 - Step 4: Simplify right side
256,838.58x = 52,441,760,143.79 - Step 5: Solve for x
x = 52,441,760,143.79/256,838.58 - Step 6: Final answer
x = 204,181.79
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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.