Finding the Fourth Proportional to 371,991.40, 513,322.86 and 202,221.88
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Solution
The fourth proportional to 371,991.40, 513,322.86 and 202,221.88 is: 279,052.46
Step by Step Solution
- Step 1: Write the proportion equation
371,991.40 : 513,322.86 = 202,221.88 : x - Step 2: Convert to fraction form
371,991.40/513,322.86 = 202,221.88/x - Step 3: Cross multiply
371,991.40x = 513,322.86 × 202,221.88 - Step 4: Simplify right side
371,991.40x = 103,805,113,796.18 - Step 5: Solve for x
x = 103,805,113,796.18/371,991.40 - Step 6: Final answer
x = 279,052.46
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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.