Finding the Fourth Proportional to 352,998.36, 529,283.84 and 142,390.26
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Solution
The fourth proportional to 352,998.36, 529,283.84 and 142,390.26 is: 213,499.19
Step by Step Solution
- Step 1: Write the proportion equation
352,998.36 : 529,283.84 = 142,390.26 : x - Step 2: Convert to fraction form
352,998.36/529,283.84 = 142,390.26/x - Step 3: Cross multiply
352,998.36x = 529,283.84 × 142,390.26 - Step 4: Simplify right side
352,998.36x = 75,364,863,591.40 - Step 5: Solve for x
x = 75,364,863,591.40/352,998.36 - Step 6: Final answer
x = 213,499.19
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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.