Finding the Fourth Proportional to 263,931.08, 395,864.94 and 74,405.72
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Solution
The fourth proportional to 263,931.08, 395,864.94 and 74,405.72 is: 111,599.65
Step by Step Solution
- Step 1: Write the proportion equation
263,931.08 : 395,864.94 = 74,405.72 : x - Step 2: Convert to fraction form
263,931.08/395,864.94 = 74,405.72/x - Step 3: Cross multiply
263,931.08x = 395,864.94 × 74,405.72 - Step 4: Simplify right side
263,931.08x = 29,454,615,883.46 - Step 5: Solve for x
x = 29,454,615,883.46/263,931.08 - Step 6: Final answer
x = 111,599.65
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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.