Finding the Fourth Proportional to 157,694.40, 236,235.20 and 140,023.44
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Solution
The fourth proportional to 157,694.40, 236,235.20 and 140,023.44 is: 209,763.09
Step by Step Solution
- Step 1: Write the proportion equation
157,694.40 : 236,235.20 = 140,023.44 : x - Step 2: Convert to fraction form
157,694.40/236,235.20 = 140,023.44/x - Step 3: Cross multiply
157,694.40x = 236,235.20 × 140,023.44 - Step 4: Simplify right side
157,694.40x = 33,078,465,353.09 - Step 5: Solve for x
x = 33,078,465,353.09/157,694.40 - Step 6: Final answer
x = 209,763.09
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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.