Finding the Fourth Proportional to 290,165.03, 435,334.04 and 138,475.99
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Solution
The fourth proportional to 290,165.03, 435,334.04 and 138,475.99 is: 207,755.27
Step by Step Solution
- Step 1: Write the proportion equation
290,165.03 : 435,334.04 = 138,475.99 : x - Step 2: Convert to fraction form
290,165.03/435,334.04 = 138,475.99/x - Step 3: Cross multiply
290,165.03x = 435,334.04 × 138,475.99 - Step 4: Simplify right side
290,165.03x = 60,283,312,540.77 - Step 5: Solve for x
x = 60,283,312,540.77/290,165.03 - Step 6: Final answer
x = 207,755.27
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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.