Finding the Fourth Proportional to 205,087.05, 307,630.58 and 125,944.65
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Solution
The fourth proportional to 205,087.05, 307,630.58 and 125,944.65 is: 188,916.98
Step by Step Solution
- Step 1: Write the proportion equation
205,087.05 : 307,630.58 = 125,944.65 : x - Step 2: Convert to fraction form
205,087.05/307,630.58 = 125,944.65/x - Step 3: Cross multiply
205,087.05x = 307,630.58 × 125,944.65 - Step 4: Simplify right side
205,087.05x = 38,744,425,097.67 - Step 5: Solve for x
x = 38,744,425,097.67/205,087.05 - Step 6: Final answer
x = 188,916.98
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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.