Finding the Fourth Proportional to 206,614.67, 310,041.67 and 86,660.95
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Solution
The fourth proportional to 206,614.67, 310,041.67 and 86,660.95 is: 130,041.62
Step by Step Solution
- Step 1: Write the proportion equation
206,614.67 : 310,041.67 = 86,660.95 : x - Step 2: Convert to fraction form
206,614.67/310,041.67 = 86,660.95/x - Step 3: Cross multiply
206,614.67x = 310,041.67 × 86,660.95 - Step 4: Simplify right side
206,614.67x = 26,868,505,661.79 - Step 5: Solve for x
x = 26,868,505,661.79/206,614.67 - Step 6: Final answer
x = 130,041.62
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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.