Finding the Fourth Proportional to 389,110.12, 536,969.36 and 227,930.68
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Solution
The fourth proportional to 389,110.12, 536,969.36 and 227,930.68 is: 314,542.81
Step by Step Solution
- Step 1: Write the proportion equation
389,110.12 : 536,969.36 = 227,930.68 : x - Step 2: Convert to fraction form
389,110.12/536,969.36 = 227,930.68/x - Step 3: Cross multiply
389,110.12x = 536,969.36 × 227,930.68 - Step 4: Simplify right side
389,110.12x = 122,391,791,363.97 - Step 5: Solve for x
x = 122,391,791,363.97/389,110.12 - Step 6: Final answer
x = 314,542.81
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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.