Finding the Fourth Proportional to 311,997.58, 430,519.63 and 176,023.59
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Solution
The fourth proportional to 311,997.58, 430,519.63 and 176,023.59 is: 242,891.66
Step by Step Solution
- Step 1: Write the proportion equation
311,997.58 : 430,519.63 = 176,023.59 : x - Step 2: Convert to fraction form
311,997.58/430,519.63 = 176,023.59/x - Step 3: Cross multiply
311,997.58x = 430,519.63 × 176,023.59 - Step 4: Simplify right side
311,997.58x = 75,781,610,819.51 - Step 5: Solve for x
x = 75,781,610,819.51/311,997.58 - Step 6: Final answer
x = 242,891.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.