Finding the Fourth Proportional to 260,724.90, 391,378.95 and 201,821.70
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Solution
The fourth proportional to 260,724.90, 391,378.95 and 201,821.70 is: 302,958.27
Step by Step Solution
- Step 1: Write the proportion equation
260,724.90 : 391,378.95 = 201,821.70 : x - Step 2: Convert to fraction form
260,724.90/391,378.95 = 201,821.70/x - Step 3: Cross multiply
260,724.90x = 391,378.95 × 201,821.70 - Step 4: Simplify right side
260,724.90x = 78,988,765,033.22 - Step 5: Solve for x
x = 78,988,765,033.22/260,724.90 - Step 6: Final answer
x = 302,958.27
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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.