Finding the Fourth Proportional to 276,687.20, 415,030.80 and 227,479.70
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Solution
The fourth proportional to 276,687.20, 415,030.80 and 227,479.70 is: 341,219.55
Step by Step Solution
- Step 1: Write the proportion equation
276,687.20 : 415,030.80 = 227,479.70 : x - Step 2: Convert to fraction form
276,687.20/415,030.80 = 227,479.70/x - Step 3: Cross multiply
276,687.20x = 415,030.80 × 227,479.70 - Step 4: Simplify right side
276,687.20x = 94,411,081,874.76 - Step 5: Solve for x
x = 94,411,081,874.76/276,687.20 - Step 6: Final answer
x = 341,219.55
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1.5x scale
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.