Finding the Fourth Proportional to 325,146.63, 487,384.71 and 135,717.23
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Solution
The fourth proportional to 325,146.63, 487,384.71 and 135,717.23 is: 203,435.92
Step by Step Solution
- Step 1: Write the proportion equation
325,146.63 : 487,384.71 = 135,717.23 : x - Step 2: Convert to fraction form
325,146.63/487,384.71 = 135,717.23/x - Step 3: Cross multiply
325,146.63x = 487,384.71 × 135,717.23 - Step 4: Simplify right side
325,146.63x = 66,146,502,785.55 - Step 5: Solve for x
x = 66,146,502,785.55/325,146.63 - Step 6: Final answer
x = 203,435.92
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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.