Finding the Fourth Proportional to 434,043.14, 651,128.14 and 209,218.70
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Solution
The fourth proportional to 434,043.14, 651,128.14 and 209,218.70 is: 313,858.62
Step by Step Solution
- Step 1: Write the proportion equation
434,043.14 : 651,128.14 = 209,218.70 : x - Step 2: Convert to fraction form
434,043.14/651,128.14 = 209,218.70/x - Step 3: Cross multiply
434,043.14x = 651,128.14 × 209,218.70 - Step 4: Simplify right side
434,043.14x = 136,228,181,799.39 - Step 5: Solve for x
x = 136,228,181,799.39/434,043.14 - Step 6: Final answer
x = 313,858.62
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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.