Finding the Fourth Proportional to 205,620.80, 283,726.68 and 120,765.20
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Solution
The fourth proportional to 205,620.80, 283,726.68 and 120,765.20 is: 166,638.34
Step by Step Solution
- Step 1: Write the proportion equation
205,620.80 : 283,726.68 = 120,765.20 : x - Step 2: Convert to fraction form
205,620.80/283,726.68 = 120,765.20/x - Step 3: Cross multiply
205,620.80x = 283,726.68 × 120,765.20 - Step 4: Simplify right side
205,620.80x = 34,264,309,255.54 - Step 5: Solve for x
x = 34,264,309,255.54/205,620.80 - Step 6: Final answer
x = 166,638.34
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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.