Finding the Fourth Proportional to 415,140.50, 622,711.35 and 115,621.94
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Solution
The fourth proportional to 415,140.50, 622,711.35 and 115,621.94 is: 173,433.07
Step by Step Solution
- Step 1: Write the proportion equation
415,140.50 : 622,711.35 = 115,621.94 : x - Step 2: Convert to fraction form
415,140.50/622,711.35 = 115,621.94/x - Step 3: Cross multiply
415,140.50x = 622,711.35 × 115,621.94 - Step 4: Simplify right side
415,140.50x = 71,999,091,233.46 - Step 5: Solve for x
x = 71,999,091,233.46/415,140.50 - Step 6: Final answer
x = 173,433.07
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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.