Finding the Fourth Proportional to 202,784.24, 279,831.08 and 112,134.96
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Solution
The fourth proportional to 202,784.24, 279,831.08 and 112,134.96 is: 154,740.07
Step by Step Solution
- Step 1: Write the proportion equation
202,784.24 : 279,831.08 = 112,134.96 : x - Step 2: Convert to fraction form
202,784.24/279,831.08 = 112,134.96/x - Step 3: Cross multiply
202,784.24x = 279,831.08 × 112,134.96 - Step 4: Simplify right side
202,784.24x = 31,378,846,962.56 - Step 5: Solve for x
x = 31,378,846,962.56/202,784.24 - Step 6: Final answer
x = 154,740.07
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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.