Finding the Fourth Proportional to 190,908.78, 263,438.74 and 110,341.53
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Solution
The fourth proportional to 190,908.78, 263,438.74 and 110,341.53 is: 152,262.42
Step by Step Solution
- Step 1: Write the proportion equation
190,908.78 : 263,438.74 = 110,341.53 : x - Step 2: Convert to fraction form
190,908.78/263,438.74 = 110,341.53/x - Step 3: Cross multiply
190,908.78x = 263,438.74 × 110,341.53 - Step 4: Simplify right side
190,908.78x = 29,068,233,632.87 - Step 5: Solve for x
x = 29,068,233,632.87/190,908.78 - Step 6: Final answer
x = 152,262.42
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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.