Finding the Fourth Proportional to 319,124.87, 440,392.94 and 173,932.28
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Solution
The fourth proportional to 319,124.87, 440,392.94 and 173,932.28 is: 240,026.88
Step by Step Solution
- Step 1: Write the proportion equation
319,124.87 : 440,392.94 = 173,932.28 : x - Step 2: Convert to fraction form
319,124.87/440,392.94 = 173,932.28/x - Step 3: Cross multiply
319,124.87x = 440,392.94 × 173,932.28 - Step 4: Simplify right side
319,124.87x = 76,598,546,382.97 - Step 5: Solve for x
x = 76,598,546,382.97/319,124.87 - Step 6: Final answer
x = 240,026.88
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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.