Finding the Fourth Proportional to 163,021.70, 228,385.90 and 163,021.70
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Solution
The fourth proportional to 163,021.70, 228,385.90 and 163,021.70 is: 228,385.90
Step by Step Solution
- Step 1: Write the proportion equation
163,021.70 : 228,385.90 = 163,021.70 : x - Step 2: Convert to fraction form
163,021.70/228,385.90 = 163,021.70/x - Step 3: Cross multiply
163,021.70x = 228,385.90 × 163,021.70 - Step 4: Simplify right side
163,021.70x = 37,231,857,674.03 - Step 5: Solve for x
x = 37,231,857,674.03/163,021.70 - Step 6: Final answer
x = 228,385.90
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.