Finding the Fourth Proportional to 317,153.60, 437,692.20 and 209,534.84
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Solution
The fourth proportional to 317,153.60, 437,692.20 and 209,534.84 is: 289,171.45
Step by Step Solution
- Step 1: Write the proportion equation
317,153.60 : 437,692.20 = 209,534.84 : x - Step 2: Convert to fraction form
317,153.60/437,692.20 = 209,534.84/x - Step 3: Cross multiply
317,153.60x = 437,692.20 × 209,534.84 - Step 4: Simplify right side
317,153.60x = 91,711,765,096.25 - Step 5: Solve for x
x = 91,711,765,096.25/317,153.60 - Step 6: Final answer
x = 289,171.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.