Finding the Fourth Proportional to 268,889.12, 371,226.72 and 238,995.68
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Solution
The fourth proportional to 268,889.12, 371,226.72 and 238,995.68 is: 329,956.01
Step by Step Solution
- Step 1: Write the proportion equation
268,889.12 : 371,226.72 = 238,995.68 : x - Step 2: Convert to fraction form
268,889.12/371,226.72 = 238,995.68/x - Step 3: Cross multiply
268,889.12x = 371,226.72 × 238,995.68 - Step 4: Simplify right side
268,889.12x = 88,721,582,380.57 - Step 5: Solve for x
x = 88,721,582,380.57/268,889.12 - Step 6: Final answer
x = 329,956.01
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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.