Finding the Fourth Proportional to 423,718.24, 635,576.80 and 108,175.20
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Solution
The fourth proportional to 423,718.24, 635,576.80 and 108,175.20 is: 162,262.66
Step by Step Solution
- Step 1: Write the proportion equation
423,718.24 : 635,576.80 = 108,175.20 : x - Step 2: Convert to fraction form
423,718.24/635,576.80 = 108,175.20/x - Step 3: Cross multiply
423,718.24x = 635,576.80 × 108,175.20 - Step 4: Simplify right side
423,718.24x = 68,753,647,455.36 - Step 5: Solve for x
x = 68,753,647,455.36/423,718.24 - Step 6: Final answer
x = 162,262.66
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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.