Finding the Fourth Proportional to 276,685.20, 415,027.80 and 201,452.40
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Solution
The fourth proportional to 276,685.20, 415,027.80 and 201,452.40 is: 302,178.60
Step by Step Solution
- Step 1: Write the proportion equation
276,685.20 : 415,027.80 = 201,452.40 : x - Step 2: Convert to fraction form
276,685.20/415,027.80 = 201,452.40/x - Step 3: Cross multiply
276,685.20x = 415,027.80 × 201,452.40 - Step 4: Simplify right side
276,685.20x = 83,608,346,376.72 - Step 5: Solve for x
x = 83,608,346,376.72/276,685.20 - Step 6: Final answer
x = 302,178.60
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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.