Finding the Fourth Proportional to 157,440.20, 236,160.30 and 39,110.60
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Solution
The fourth proportional to 157,440.20, 236,160.30 and 39,110.60 is: 58,665.90
Step by Step Solution
- Step 1: Write the proportion equation
157,440.20 : 236,160.30 = 39,110.60 : x - Step 2: Convert to fraction form
157,440.20/236,160.30 = 39,110.60/x - Step 3: Cross multiply
157,440.20x = 236,160.30 × 39,110.60 - Step 4: Simplify right side
157,440.20x = 9,236,371,029.18 - Step 5: Solve for x
x = 9,236,371,029.18/157,440.20 - Step 6: Final answer
x = 58,665.90
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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.