Finding the Fourth Proportional to 372,215.40, 513,631.98 and 202,445.88
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Solution
The fourth proportional to 372,215.40, 513,631.98 and 202,445.88 is: 279,361.57
Step by Step Solution
- Step 1: Write the proportion equation
372,215.40 : 513,631.98 = 202,445.88 : x - Step 2: Convert to fraction form
372,215.40/513,631.98 = 202,445.88/x - Step 3: Cross multiply
372,215.40x = 513,631.98 × 202,445.88 - Step 4: Simplify right side
372,215.40x = 103,982,678,187.24 - Step 5: Solve for x
x = 103,982,678,187.24/372,215.40 - Step 6: Final answer
x = 279,361.57
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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.