Finding the Fourth Proportional to 251,135.40, 377,577.90 and 212,644.20
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Solution
The fourth proportional to 251,135.40, 377,577.90 and 212,644.20 is: 319,707.02
Step by Step Solution
- Step 1: Write the proportion equation
251,135.40 : 377,577.90 = 212,644.20 : x - Step 2: Convert to fraction form
251,135.40/377,577.90 = 212,644.20/x - Step 3: Cross multiply
251,135.40x = 377,577.90 × 212,644.20 - Step 4: Simplify right side
251,135.40x = 80,289,750,483.18 - Step 5: Solve for x
x = 80,289,750,483.18/251,135.40 - Step 6: Final answer
x = 319,707.02
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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.