Finding the Fourth Proportional to 215,252.76, 322,761.88 and 139,341.09
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Solution
The fourth proportional to 215,252.76, 322,761.88 and 139,341.09 is: 208,935.73
Step by Step Solution
- Step 1: Write the proportion equation
215,252.76 : 322,761.88 = 139,341.09 : x - Step 2: Convert to fraction form
215,252.76/322,761.88 = 139,341.09/x - Step 3: Cross multiply
215,252.76x = 322,761.88 × 139,341.09 - Step 4: Simplify right side
215,252.76x = 44,973,992,169.65 - Step 5: Solve for x
x = 44,973,992,169.65/215,252.76 - Step 6: Final answer
x = 208,935.73
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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.