Finding the Fourth Proportional to 276,873.80, 415,310.70 and 136,905.80
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Solution
The fourth proportional to 276,873.80, 415,310.70 and 136,905.80 is: 205,358.70
Step by Step Solution
- Step 1: Write the proportion equation
276,873.80 : 415,310.70 = 136,905.80 : x - Step 2: Convert to fraction form
276,873.80/415,310.70 = 136,905.80/x - Step 3: Cross multiply
276,873.80x = 415,310.70 × 136,905.80 - Step 4: Simplify right side
276,873.80x = 56,858,443,632.06 - Step 5: Solve for x
x = 56,858,443,632.06/276,873.80 - Step 6: Final answer
x = 205,358.70
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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.