Finding the Fourth Proportional to 313,340.40, 469,440.36 and 279,748.08
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Solution
The fourth proportional to 313,340.40, 469,440.36 and 279,748.08 is: 419,113.01
Step by Step Solution
- Step 1: Write the proportion equation
313,340.40 : 469,440.36 = 279,748.08 : x - Step 2: Convert to fraction form
313,340.40/469,440.36 = 279,748.08/x - Step 3: Cross multiply
313,340.40x = 469,440.36 × 279,748.08 - Step 4: Simplify right side
313,340.40x = 131,325,039,384.51 - Step 5: Solve for x
x = 131,325,039,384.51/313,340.40 - Step 6: Final answer
x = 419,113.01
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1.5x scale
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.