Finding the Fourth Proportional to 171,715.68, 257,572.26 and 53,386.80
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Solution
The fourth proportional to 171,715.68, 257,572.26 and 53,386.80 is: 80,079.81
Step by Step Solution
- Step 1: Write the proportion equation
171,715.68 : 257,572.26 = 53,386.80 : x - Step 2: Convert to fraction form
171,715.68/257,572.26 = 53,386.80/x - Step 3: Cross multiply
171,715.68x = 257,572.26 × 53,386.80 - Step 4: Simplify right side
171,715.68x = 13,750,958,730.17 - Step 5: Solve for x
x = 13,750,958,730.17/171,715.68 - Step 6: Final answer
x = 80,079.81
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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.