Finding the Fourth Proportional to 485,901.60, 728,593.20 and 205,101.60
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Solution
The fourth proportional to 485,901.60, 728,593.20 and 205,101.60 is: 307,542.99
Step by Step Solution
- Step 1: Write the proportion equation
485,901.60 : 728,593.20 = 205,101.60 : x - Step 2: Convert to fraction form
485,901.60/728,593.20 = 205,101.60/x - Step 3: Cross multiply
485,901.60x = 728,593.20 × 205,101.60 - Step 4: Simplify right side
485,901.60x = 149,435,631,069.12 - Step 5: Solve for x
x = 149,435,631,069.12/485,901.60 - Step 6: Final answer
x = 307,542.99
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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.