Finding the Fourth Proportional to 326,029.76, 489,044.64 and 215,195.84
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Solution
The fourth proportional to 326,029.76, 489,044.64 and 215,195.84 is: 322,793.76
Step by Step Solution
- Step 1: Write the proportion equation
326,029.76 : 489,044.64 = 215,195.84 : x - Step 2: Convert to fraction form
326,029.76/489,044.64 = 215,195.84/x - Step 3: Cross multiply
326,029.76x = 489,044.64 × 215,195.84 - Step 4: Simplify right side
326,029.76x = 105,240,372,102.30 - Step 5: Solve for x
x = 105,240,372,102.30/326,029.76 - Step 6: Final answer
x = 322,793.76
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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.