Finding the Fourth Proportional to 312,742.08, 469,112.94 and 125,709.84
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Solution
The fourth proportional to 312,742.08, 469,112.94 and 125,709.84 is: 188,564.69
Step by Step Solution
- Step 1: Write the proportion equation
312,742.08 : 469,112.94 = 125,709.84 : x - Step 2: Convert to fraction form
312,742.08/469,112.94 = 125,709.84/x - Step 3: Cross multiply
312,742.08x = 469,112.94 × 125,709.84 - Step 4: Simplify right side
312,742.08x = 58,972,112,629.33 - Step 5: Solve for x
x = 58,972,112,629.33/312,742.08 - Step 6: Final answer
x = 188,564.69
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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.