Finding the Fourth Proportional to 206,813.70, 310,220.55 and 206,813.70
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Solution
The fourth proportional to 206,813.70, 310,220.55 and 206,813.70 is: 310,220.55
Step by Step Solution
- Step 1: Write the proportion equation
206,813.70 : 310,220.55 = 206,813.70 : x - Step 2: Convert to fraction form
206,813.70/310,220.55 = 206,813.70/x - Step 3: Cross multiply
206,813.70x = 310,220.55 × 206,813.70 - Step 4: Simplify right side
206,813.70x = 64,157,859,761.54 - Step 5: Solve for x
x = 64,157,859,761.54/206,813.70 - Step 6: Final answer
x = 310,220.55
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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.