Finding the Fourth Proportional to 207,649.07, 286,558.40 and 122,765.39
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Solution
The fourth proportional to 207,649.07, 286,558.40 and 122,765.39 is: 169,417.82
Step by Step Solution
- Step 1: Write the proportion equation
207,649.07 : 286,558.40 = 122,765.39 : x - Step 2: Convert to fraction form
207,649.07/286,558.40 = 122,765.39/x - Step 3: Cross multiply
207,649.07x = 286,558.40 × 122,765.39 - Step 4: Simplify right side
207,649.07x = 35,179,453,733.78 - Step 5: Solve for x
x = 35,179,453,733.78/207,649.07 - Step 6: Final answer
x = 169,417.82
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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.