Finding the Fourth Proportional to 259,441.86, 388,995.09 and 101,686.26
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Solution
The fourth proportional to 259,441.86, 388,995.09 and 101,686.26 is: 152,463.66
Step by Step Solution
- Step 1: Write the proportion equation
259,441.86 : 388,995.09 = 101,686.26 : x - Step 2: Convert to fraction form
259,441.86/388,995.09 = 101,686.26/x - Step 3: Cross multiply
259,441.86x = 388,995.09 × 101,686.26 - Step 4: Simplify right side
259,441.86x = 39,555,455,860.46 - Step 5: Solve for x
x = 39,555,455,860.46/259,441.86 - Step 6: Final answer
x = 152,463.66
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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.