Finding the Fourth Proportional to 276,099.40, 414,149.10 and 186,869.80
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Solution
The fourth proportional to 276,099.40, 414,149.10 and 186,869.80 is: 280,304.70
Step by Step Solution
- Step 1: Write the proportion equation
276,099.40 : 414,149.10 = 186,869.80 : x - Step 2: Convert to fraction form
276,099.40/414,149.10 = 186,869.80/x - Step 3: Cross multiply
276,099.40x = 414,149.10 × 186,869.80 - Step 4: Simplify right side
276,099.40x = 77,391,959,487.18 - Step 5: Solve for x
x = 77,391,959,487.18/276,099.40 - Step 6: Final answer
x = 280,304.70
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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.