Finding the Fourth Proportional to 638,464.88, 957,488.92 and 211,886.08
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Solution
The fourth proportional to 638,464.88, 957,488.92 and 211,886.08 is: 317,759.96
Step by Step Solution
- Step 1: Write the proportion equation
638,464.88 : 957,488.92 = 211,886.08 : x - Step 2: Convert to fraction form
638,464.88/957,488.92 = 211,886.08/x - Step 3: Cross multiply
638,464.88x = 957,488.92 × 211,886.08 - Step 4: Simplify right side
638,464.88x = 202,878,573,902.23 - Step 5: Solve for x
x = 202,878,573,902.23/638,464.88 - Step 6: Final answer
x = 317,759.96
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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.