Finding the Fourth Proportional to 225,841.76, 311,662.68 and 125,239.76
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Solution
The fourth proportional to 225,841.76, 311,662.68 and 125,239.76 is: 172,831.45
Step by Step Solution
- Step 1: Write the proportion equation
225,841.76 : 311,662.68 = 125,239.76 : x - Step 2: Convert to fraction form
225,841.76/311,662.68 = 125,239.76/x - Step 3: Cross multiply
225,841.76x = 311,662.68 × 125,239.76 - Step 4: Simplify right side
225,841.76x = 39,032,559,244.16 - Step 5: Solve for x
x = 39,032,559,244.16/225,841.76 - Step 6: Final answer
x = 172,831.45
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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.