Finding the Fourth Proportional to 165,432.70, 248,251.11 and 76,669.66
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Solution
The fourth proportional to 165,432.70, 248,251.11 and 76,669.66 is: 115,051.79
Step by Step Solution
- Step 1: Write the proportion equation
165,432.70 : 248,251.11 = 76,669.66 : x - Step 2: Convert to fraction form
165,432.70/248,251.11 = 76,669.66/x - Step 3: Cross multiply
165,432.70x = 248,251.11 × 76,669.66 - Step 4: Simplify right side
165,432.70x = 19,033,328,198.32 - Step 5: Solve for x
x = 19,033,328,198.32/165,432.70 - Step 6: Final answer
x = 115,051.79
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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.