Finding the Fourth Proportional to 207,916.87, 286,924.86 and 117,272.56
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Solution
The fourth proportional to 207,916.87, 286,924.86 and 117,272.56 is: 161,835.90
Step by Step Solution
- Step 1: Write the proportion equation
207,916.87 : 286,924.86 = 117,272.56 : x - Step 2: Convert to fraction form
207,916.87/286,924.86 = 117,272.56/x - Step 3: Cross multiply
207,916.87x = 286,924.86 × 117,272.56 - Step 4: Simplify right side
207,916.87x = 33,648,412,859.84 - Step 5: Solve for x
x = 33,648,412,859.84/207,916.87 - Step 6: Final answer
x = 161,835.90
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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.