Finding the Fourth Proportional to 202,856.58, 279,874.08 and 116,813.70
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Solution
The fourth proportional to 202,856.58, 279,874.08 and 116,813.70 is: 161,163.75
Step by Step Solution
- Step 1: Write the proportion equation
202,856.58 : 279,874.08 = 116,813.70 : x - Step 2: Convert to fraction form
202,856.58/279,874.08 = 116,813.70/x - Step 3: Cross multiply
202,856.58x = 279,874.08 × 116,813.70 - Step 4: Simplify right side
202,856.58x = 32,693,126,818.90 - Step 5: Solve for x
x = 32,693,126,818.90/202,856.58 - Step 6: Final answer
x = 161,163.75
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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.