Finding the Fourth Proportional to 225,699.75, 311,465.70 and 125,097.75
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Solution
The fourth proportional to 225,699.75, 311,465.70 and 125,097.75 is: 172,634.92
Step by Step Solution
- Step 1: Write the proportion equation
225,699.75 : 311,465.70 = 125,097.75 : x - Step 2: Convert to fraction form
225,699.75/311,465.70 = 125,097.75/x - Step 3: Cross multiply
225,699.75x = 311,465.70 × 125,097.75 - Step 4: Simplify right side
225,699.75x = 38,963,658,272.18 - Step 5: Solve for x
x = 38,963,658,272.18/225,699.75 - Step 6: Final answer
x = 172,634.92
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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.