Finding the Fourth Proportional to 286,857.80, 430,286.70 and 162,441.80
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Solution
The fourth proportional to 286,857.80, 430,286.70 and 162,441.80 is: 243,662.70
Step by Step Solution
- Step 1: Write the proportion equation
286,857.80 : 430,286.70 = 162,441.80 : x - Step 2: Convert to fraction form
286,857.80/430,286.70 = 162,441.80/x - Step 3: Cross multiply
286,857.80x = 430,286.70 × 162,441.80 - Step 4: Simplify right side
286,857.80x = 69,896,546,064.06 - Step 5: Solve for x
x = 69,896,546,064.06/286,857.80 - Step 6: Final answer
x = 243,662.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.