Finding the Fourth Proportional to 326,076.10, 489,114.15 and 214,101.70
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Solution
The fourth proportional to 326,076.10, 489,114.15 and 214,101.70 is: 321,152.55
Step by Step Solution
- Step 1: Write the proportion equation
326,076.10 : 489,114.15 = 214,101.70 : x - Step 2: Convert to fraction form
326,076.10/489,114.15 = 214,101.70/x - Step 3: Cross multiply
326,076.10x = 489,114.15 × 214,101.70 - Step 4: Simplify right side
326,076.10x = 104,720,171,009.06 - Step 5: Solve for x
x = 104,720,171,009.06/326,076.10 - Step 6: Final answer
x = 321,152.55
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1.5x scale
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.