Finding the Fourth Proportional to 372,189.12, 513,619.56 and 202,426.08
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Solution
The fourth proportional to 372,189.12, 513,619.56 and 202,426.08 is: 279,347.22
Step by Step Solution
- Step 1: Write the proportion equation
372,189.12 : 513,619.56 = 202,426.08 : x - Step 2: Convert to fraction form
372,189.12/513,619.56 = 202,426.08/x - Step 3: Cross multiply
372,189.12x = 513,619.56 × 202,426.08 - Step 4: Simplify right side
372,189.12x = 103,969,994,142.13 - Step 5: Solve for x
x = 103,969,994,142.13/372,189.12 - Step 6: Final answer
x = 279,347.22
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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.