Finding the Fourth Proportional to 286,207.26, 429,320.03 and 143,974.80
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Solution
The fourth proportional to 286,207.26, 429,320.03 and 143,974.80 is: 215,966.80
Step by Step Solution
- Step 1: Write the proportion equation
286,207.26 : 429,320.03 = 143,974.80 : x - Step 2: Convert to fraction form
286,207.26/429,320.03 = 143,974.80/x - Step 3: Cross multiply
286,207.26x = 429,320.03 × 143,974.80 - Step 4: Simplify right side
286,207.26x = 61,811,264,735.37 - Step 5: Solve for x
x = 61,811,264,735.37/286,207.26 - Step 6: Final answer
x = 215,966.80
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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.