Finding the Fourth Proportional to 286,722.26, 395,700.66 and 159,409.70
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Solution
The fourth proportional to 286,722.26, 395,700.66 and 159,409.70 is: 219,998.70
Step by Step Solution
- Step 1: Write the proportion equation
286,722.26 : 395,700.66 = 159,409.70 : x - Step 2: Convert to fraction form
286,722.26/395,700.66 = 159,409.70/x - Step 3: Cross multiply
286,722.26x = 395,700.66 × 159,409.70 - Step 4: Simplify right side
286,722.26x = 63,078,523,500.40 - Step 5: Solve for x
x = 63,078,523,500.40/286,722.26 - Step 6: Final answer
x = 219,998.70
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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.