Finding the Fourth Proportional to 370,842.12, 511,756.20 and 209,692.08
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Solution
The fourth proportional to 370,842.12, 511,756.20 and 209,692.08 is: 289,371.72
Step by Step Solution
- Step 1: Write the proportion equation
370,842.12 : 511,756.20 = 209,692.08 : x - Step 2: Convert to fraction form
370,842.12/511,756.20 = 209,692.08/x - Step 3: Cross multiply
370,842.12x = 511,756.20 × 209,692.08 - Step 4: Simplify right side
370,842.12x = 107,311,222,030.90 - Step 5: Solve for x
x = 107,311,222,030.90/370,842.12 - Step 6: Final answer
x = 289,371.72
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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.