Finding the Fourth Proportional to 252,987.24, 349,119.18 and 139,807.56
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Solution
The fourth proportional to 252,987.24, 349,119.18 and 139,807.56 is: 192,932.66
Step by Step Solution
- Step 1: Write the proportion equation
252,987.24 : 349,119.18 = 139,807.56 : x - Step 2: Convert to fraction form
252,987.24/349,119.18 = 139,807.56/x - Step 3: Cross multiply
252,987.24x = 349,119.18 × 139,807.56 - Step 4: Simplify right side
252,987.24x = 48,809,500,705.00 - Step 5: Solve for x
x = 48,809,500,705.00/252,987.24 - Step 6: Final answer
x = 192,932.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.