Finding the Fourth Proportional to 202,511.13, 279,453.76 and 120,931.44
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Solution
The fourth proportional to 202,511.13, 279,453.76 and 120,931.44 is: 166,878.46
Step by Step Solution
- Step 1: Write the proportion equation
202,511.13 : 279,453.76 = 120,931.44 : x - Step 2: Convert to fraction form
202,511.13/279,453.76 = 120,931.44/x - Step 3: Cross multiply
202,511.13x = 279,453.76 × 120,931.44 - Step 4: Simplify right side
202,511.13x = 33,794,745,610.21 - Step 5: Solve for x
x = 33,794,745,610.21/202,511.13 - Step 6: Final answer
x = 166,878.46
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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.