Finding the Fourth Proportional to 284,562.36, 392,692.14 and 157,236.12
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Solution
The fourth proportional to 284,562.36, 392,692.14 and 157,236.12 is: 216,983.68
Step by Step Solution
- Step 1: Write the proportion equation
284,562.36 : 392,692.14 = 157,236.12 : x - Step 2: Convert to fraction form
284,562.36/392,692.14 = 157,236.12/x - Step 3: Cross multiply
284,562.36x = 392,692.14 × 157,236.12 - Step 4: Simplify right side
284,562.36x = 61,745,388,448.10 - Step 5: Solve for x
x = 61,745,388,448.10/284,562.36 - Step 6: Final answer
x = 216,983.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.