Finding the Fourth Proportional to 290,867.76, 436,253.04 and 80,526.96
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Solution
The fourth proportional to 290,867.76, 436,253.04 and 80,526.96 is: 120,776.99
Step by Step Solution
- Step 1: Write the proportion equation
290,867.76 : 436,253.04 = 80,526.96 : x - Step 2: Convert to fraction form
290,867.76/436,253.04 = 80,526.96/x - Step 3: Cross multiply
290,867.76x = 436,253.04 × 80,526.96 - Step 4: Simplify right side
290,867.76x = 35,130,131,101.96 - Step 5: Solve for x
x = 35,130,131,101.96/290,867.76 - Step 6: Final answer
x = 120,776.99
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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.