Finding the Fourth Proportional to 171,635.80, 257,453.70 and 154,139.80
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Solution
The fourth proportional to 171,635.80, 257,453.70 and 154,139.80 is: 231,209.70
Step by Step Solution
- Step 1: Write the proportion equation
171,635.80 : 257,453.70 = 154,139.80 : x - Step 2: Convert to fraction form
171,635.80/257,453.70 = 154,139.80/x - Step 3: Cross multiply
171,635.80x = 257,453.70 × 154,139.80 - Step 4: Simplify right side
171,635.80x = 39,683,861,827.26 - Step 5: Solve for x
x = 39,683,861,827.26/171,635.80 - Step 6: Final answer
x = 231,209.70
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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.