Finding the Fourth Proportional to 347,122.20, 520,877.70 and 147,408.60
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Solution
The fourth proportional to 347,122.20, 520,877.70 and 147,408.60 is: 221,195.45
Step by Step Solution
- Step 1: Write the proportion equation
347,122.20 : 520,877.70 = 147,408.60 : x - Step 2: Convert to fraction form
347,122.20/520,877.70 = 147,408.60/x - Step 3: Cross multiply
347,122.20x = 520,877.70 × 147,408.60 - Step 4: Simplify right side
347,122.20x = 76,781,852,528.22 - Step 5: Solve for x
x = 76,781,852,528.22/347,122.20 - Step 6: Final answer
x = 221,195.45
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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.