Finding the Fourth Proportional to 202,718.08, 279,765.12 and 112,076.80
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Solution
The fourth proportional to 202,718.08, 279,765.12 and 112,076.80 is: 154,673.82
Step by Step Solution
- Step 1: Write the proportion equation
202,718.08 : 279,765.12 = 112,076.80 : x - Step 2: Convert to fraction form
202,718.08/279,765.12 = 112,076.80/x - Step 3: Cross multiply
202,718.08x = 279,765.12 × 112,076.80 - Step 4: Simplify right side
202,718.08x = 31,355,179,401.22 - Step 5: Solve for x
x = 31,355,179,401.22/202,718.08 - Step 6: Final answer
x = 154,673.82
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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.