Finding the Fourth Proportional to 276,716.40, 415,074.60 and 272,779.80
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Solution
The fourth proportional to 276,716.40, 415,074.60 and 272,779.80 is: 409,169.70
Step by Step Solution
- Step 1: Write the proportion equation
276,716.40 : 415,074.60 = 272,779.80 : x - Step 2: Convert to fraction form
276,716.40/415,074.60 = 272,779.80/x - Step 3: Cross multiply
276,716.40x = 415,074.60 × 272,779.80 - Step 4: Simplify right side
276,716.40x = 113,223,966,373.08 - Step 5: Solve for x
x = 113,223,966,373.08/276,716.40 - Step 6: Final answer
x = 409,169.70
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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.