Finding the Fourth Proportional to 355,764.18, 490,966.26 and 202,799.64
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Solution
The fourth proportional to 355,764.18, 490,966.26 and 202,799.64 is: 279,870.17
Step by Step Solution
- Step 1: Write the proportion equation
355,764.18 : 490,966.26 = 202,799.64 : x - Step 2: Convert to fraction form
355,764.18/490,966.26 = 202,799.64/x - Step 3: Cross multiply
355,764.18x = 490,966.26 × 202,799.64 - Step 4: Simplify right side
355,764.18x = 99,567,780,780.15 - Step 5: Solve for x
x = 99,567,780,780.15/355,764.18 - Step 6: Final answer
x = 279,870.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.