Finding the Fourth Proportional to 421,750.08, 632,625.52 and 172,432.08
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Solution
The fourth proportional to 421,750.08, 632,625.52 and 172,432.08 is: 258,648.28
Step by Step Solution
- Step 1: Write the proportion equation
421,750.08 : 632,625.52 = 172,432.08 : x - Step 2: Convert to fraction form
421,750.08/632,625.52 = 172,432.08/x - Step 3: Cross multiply
421,750.08x = 632,625.52 × 172,432.08 - Step 4: Simplify right side
421,750.08x = 109,084,934,274.68 - Step 5: Solve for x
x = 109,084,934,274.68/421,750.08 - Step 6: Final answer
x = 258,648.28
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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.