Finding the Fourth Proportional to 307,630.20, 461,531.70 and 149,863.80
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Solution
The fourth proportional to 307,630.20, 461,531.70 and 149,863.80 is: 224,837.79
Step by Step Solution
- Step 1: Write the proportion equation
307,630.20 : 461,531.70 = 149,863.80 : x - Step 2: Convert to fraction form
307,630.20/461,531.70 = 149,863.80/x - Step 3: Cross multiply
307,630.20x = 461,531.70 × 149,863.80 - Step 4: Simplify right side
307,630.20x = 69,166,894,382.46 - Step 5: Solve for x
x = 69,166,894,382.46/307,630.20 - Step 6: Final answer
x = 224,837.79
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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.