Finding the Fourth Proportional to 157,578.30, 236,331.41 and 45,257.63
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Solution
The fourth proportional to 157,578.30, 236,331.41 and 45,257.63 is: 67,876.09
Step by Step Solution
- Step 1: Write the proportion equation
157,578.30 : 236,331.41 = 45,257.63 : x - Step 2: Convert to fraction form
157,578.30/236,331.41 = 45,257.63/x - Step 3: Cross multiply
157,578.30x = 236,331.41 × 45,257.63 - Step 4: Simplify right side
157,578.30x = 10,695,798,103.21 - Step 5: Solve for x
x = 10,695,798,103.21/157,578.30 - Step 6: Final answer
x = 67,876.09
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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.