Finding the Fourth Proportional to 372,183.12, 513,611.28 and 202,420.08
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Solution
The fourth proportional to 372,183.12, 513,611.28 and 202,420.08 is: 279,338.94
Step by Step Solution
- Step 1: Write the proportion equation
372,183.12 : 513,611.28 = 202,420.08 : x - Step 2: Convert to fraction form
372,183.12/513,611.28 = 202,420.08/x - Step 3: Cross multiply
372,183.12x = 513,611.28 × 202,420.08 - Step 4: Simplify right side
372,183.12x = 103,965,236,386.50 - Step 5: Solve for x
x = 103,965,236,386.50/372,183.12 - Step 6: Final answer
x = 279,338.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.