Finding the Fourth Proportional to 157,751.82, 236,642.61 and 122,252.90
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Solution
The fourth proportional to 157,751.82, 236,642.61 and 122,252.90 is: 183,390.88
Step by Step Solution
- Step 1: Write the proportion equation
157,751.82 : 236,642.61 = 122,252.90 : x - Step 2: Convert to fraction form
157,751.82/236,642.61 = 122,252.90/x - Step 3: Cross multiply
157,751.82x = 236,642.61 × 122,252.90 - Step 4: Simplify right side
157,751.82x = 28,930,245,254.75 - Step 5: Solve for x
x = 28,930,245,254.75/157,751.82 - Step 6: Final answer
x = 183,390.88
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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.