Finding the Fourth Proportional to 421,467.63, 632,202.05 and 172,149.63
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Solution
The fourth proportional to 421,467.63, 632,202.05 and 172,149.63 is: 258,224.69
Step by Step Solution
- Step 1: Write the proportion equation
421,467.63 : 632,202.05 = 172,149.63 : x - Step 2: Convert to fraction form
421,467.63/632,202.05 = 172,149.63/x - Step 3: Cross multiply
421,467.63x = 632,202.05 × 172,149.63 - Step 4: Simplify right side
421,467.63x = 108,833,348,992.74 - Step 5: Solve for x
x = 108,833,348,992.74/421,467.63 - Step 6: Final answer
x = 258,224.69
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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.