Finding the Fourth Proportional to 261,950.81, 392,928.95 and 209,692.49
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Solution
The fourth proportional to 261,950.81, 392,928.95 and 209,692.49 is: 314,540.92
Step by Step Solution
- Step 1: Write the proportion equation
261,950.81 : 392,928.95 = 209,692.49 : x - Step 2: Convert to fraction form
261,950.81/392,928.95 = 209,692.49/x - Step 3: Cross multiply
261,950.81x = 392,928.95 × 209,692.49 - Step 4: Simplify right side
261,950.81x = 82,394,248,478.17 - Step 5: Solve for x
x = 82,394,248,478.17/261,950.81 - Step 6: Final answer
x = 314,540.92
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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.