Finding the Fourth Proportional to 259,698.06, 390,232.06 and 139,843.62
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Solution
The fourth proportional to 259,698.06, 390,232.06 and 139,843.62 is: 210,134.28
Step by Step Solution
- Step 1: Write the proportion equation
259,698.06 : 390,232.06 = 139,843.62 : x - Step 2: Convert to fraction form
259,698.06/390,232.06 = 139,843.62/x - Step 3: Cross multiply
259,698.06x = 390,232.06 × 139,843.62 - Step 4: Simplify right side
259,698.06x = 54,571,463,910.46 - Step 5: Solve for x
x = 54,571,463,910.46/259,698.06 - Step 6: Final answer
x = 210,134.28
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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.