Finding the Fourth Proportional to 331,829.19, 457,909.71 and 186,647.09
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Solution
The fourth proportional to 331,829.19, 457,909.71 and 186,647.09 is: 257,564.78
Step by Step Solution
- Step 1: Write the proportion equation
331,829.19 : 457,909.71 = 186,647.09 : x - Step 2: Convert to fraction form
331,829.19/457,909.71 = 186,647.09/x - Step 3: Cross multiply
331,829.19x = 457,909.71 × 186,647.09 - Step 4: Simplify right side
331,829.19x = 85,467,511,864.77 - Step 5: Solve for x
x = 85,467,511,864.77/331,829.19 - Step 6: Final answer
x = 257,564.78
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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.