Finding the Fourth Proportional to 157,537.40, 236,478.90 and 98,439.80
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Solution
The fourth proportional to 157,537.40, 236,478.90 and 98,439.80 is: 147,767.68
Step by Step Solution
- Step 1: Write the proportion equation
157,537.40 : 236,478.90 = 98,439.80 : x - Step 2: Convert to fraction form
157,537.40/236,478.90 = 98,439.80/x - Step 3: Cross multiply
157,537.40x = 236,478.90 × 98,439.80 - Step 4: Simplify right side
157,537.40x = 23,278,935,620.22 - Step 5: Solve for x
x = 23,278,935,620.22/157,537.40 - Step 6: Final answer
x = 147,767.68
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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.