Finding the Fourth Proportional to 280,299.45, 420,199.20 and 102,765.09
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Solution
The fourth proportional to 280,299.45, 420,199.20 and 102,765.09 is: 154,055.99
Step by Step Solution
- Step 1: Write the proportion equation
280,299.45 : 420,199.20 = 102,765.09 : x - Step 2: Convert to fraction form
280,299.45/420,199.20 = 102,765.09/x - Step 3: Cross multiply
280,299.45x = 420,199.20 × 102,765.09 - Step 4: Simplify right side
280,299.45x = 43,181,808,605.93 - Step 5: Solve for x
x = 43,181,808,605.93/280,299.45 - Step 6: Final answer
x = 154,055.99
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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.