Finding the Fourth Proportional to 407,252.40, 611,170.20 and 170,764.80
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Solution
The fourth proportional to 407,252.40, 611,170.20 and 170,764.80 is: 256,269.47
Step by Step Solution
- Step 1: Write the proportion equation
407,252.40 : 611,170.20 = 170,764.80 : x - Step 2: Convert to fraction form
407,252.40/611,170.20 = 170,764.80/x - Step 3: Cross multiply
407,252.40x = 611,170.20 × 170,764.80 - Step 4: Simplify right side
407,252.40x = 104,366,356,968.96 - Step 5: Solve for x
x = 104,366,356,968.96/407,252.40 - Step 6: Final answer
x = 256,269.47
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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.