Finding the Fourth Proportional to 393,692.48, 543,279.98 and 232,599.68
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Solution
The fourth proportional to 393,692.48, 543,279.98 and 232,599.68 is: 320,978.32
Step by Step Solution
- Step 1: Write the proportion equation
393,692.48 : 543,279.98 = 232,599.68 : x - Step 2: Convert to fraction form
393,692.48/543,279.98 = 232,599.68/x - Step 3: Cross multiply
393,692.48x = 543,279.98 × 232,599.68 - Step 4: Simplify right side
393,692.48x = 126,366,747,363.51 - Step 5: Solve for x
x = 126,366,747,363.51/393,692.48 - Step 6: Final answer
x = 320,978.32
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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.