Finding the Fourth Proportional to 263,253.08, 394,921.74 and 85,746.44
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Solution
The fourth proportional to 263,253.08, 394,921.74 and 85,746.44 is: 128,633.38
Step by Step Solution
- Step 1: Write the proportion equation
263,253.08 : 394,921.74 = 85,746.44 : x - Step 2: Convert to fraction form
263,253.08/394,921.74 = 85,746.44/x - Step 3: Cross multiply
263,253.08x = 394,921.74 × 85,746.44 - Step 4: Simplify right side
263,253.08x = 33,863,133,283.61 - Step 5: Solve for x
x = 33,863,133,283.61/263,253.08 - Step 6: Final answer
x = 128,633.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.