Finding the Fourth Proportional to 421,576.24, 632,365.44 and 172,258.24
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Solution
The fourth proportional to 421,576.24, 632,365.44 and 172,258.24 is: 258,387.80
Step by Step Solution
- Step 1: Write the proportion equation
421,576.24 : 632,365.44 = 172,258.24 : x - Step 2: Convert to fraction form
421,576.24/632,365.44 = 172,258.24/x - Step 3: Cross multiply
421,576.24x = 632,365.44 × 172,258.24 - Step 4: Simplify right side
421,576.24x = 108,930,157,731.23 - Step 5: Solve for x
x = 108,930,157,731.23/421,576.24 - Step 6: Final answer
x = 258,387.80
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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.