Finding the Fourth Proportional to 415,718.20, 622,655.70 and 166,271.80
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Solution
The fourth proportional to 415,718.20, 622,655.70 and 166,271.80 is: 249,039.09
Step by Step Solution
- Step 1: Write the proportion equation
415,718.20 : 622,655.70 = 166,271.80 : x - Step 2: Convert to fraction form
415,718.20/622,655.70 = 166,271.80/x - Step 3: Cross multiply
415,718.20x = 622,655.70 × 166,271.80 - Step 4: Simplify right side
415,718.20x = 103,530,084,019.26 - Step 5: Solve for x
x = 103,530,084,019.26/415,718.20 - Step 6: Final answer
x = 249,039.09
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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.