Finding the Fourth Proportional to 171,457.38, 257,187.42 and 53,127.99
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Solution
The fourth proportional to 171,457.38, 257,187.42 and 53,127.99 is: 79,692.40
Step by Step Solution
- Step 1: Write the proportion equation
171,457.38 : 257,187.42 = 53,127.99 : x - Step 2: Convert to fraction form
171,457.38/257,187.42 = 53,127.99/x - Step 3: Cross multiply
171,457.38x = 257,187.42 × 53,127.99 - Step 4: Simplify right side
171,457.38x = 13,663,850,677.89 - Step 5: Solve for x
x = 13,663,850,677.89/171,457.38 - Step 6: Final answer
x = 79,692.40
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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.