Finding the Fourth Proportional to 171,616.40, 257,424.60 and 53,299.70
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Solution
The fourth proportional to 171,616.40, 257,424.60 and 53,299.70 is: 79,949.55
Step by Step Solution
- Step 1: Write the proportion equation
171,616.40 : 257,424.60 = 53,299.70 : x - Step 2: Convert to fraction form
171,616.40/257,424.60 = 53,299.70/x - Step 3: Cross multiply
171,616.40x = 257,424.60 × 53,299.70 - Step 4: Simplify right side
171,616.40x = 13,720,653,952.62 - Step 5: Solve for x
x = 13,720,653,952.62/171,616.40 - Step 6: Final answer
x = 79,949.55
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1.5x scale
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.