Finding the Fourth Proportional to 445,837.20, 668,755.80 and 268,252.80
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Solution
The fourth proportional to 445,837.20, 668,755.80 and 268,252.80 is: 402,379.20
Step by Step Solution
- Step 1: Write the proportion equation
445,837.20 : 668,755.80 = 268,252.80 : x - Step 2: Convert to fraction form
445,837.20/668,755.80 = 268,252.80/x - Step 3: Cross multiply
445,837.20x = 668,755.80 × 268,252.80 - Step 4: Simplify right side
445,837.20x = 179,395,615,866.24 - Step 5: Solve for x
x = 179,395,615,866.24/445,837.20 - Step 6: Final answer
x = 402,379.20
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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.