Finding the Fourth Proportional to 414,223.81, 621,343.44 and 129,908.07
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Solution
The fourth proportional to 414,223.81, 621,343.44 and 129,908.07 is: 194,864.53
Step by Step Solution
- Step 1: Write the proportion equation
414,223.81 : 621,343.44 = 129,908.07 : x - Step 2: Convert to fraction form
414,223.81/621,343.44 = 129,908.07/x - Step 3: Cross multiply
414,223.81x = 621,343.44 × 129,908.07 - Step 4: Simplify right side
414,223.81x = 80,717,527,097.56 - Step 5: Solve for x
x = 80,717,527,097.56/414,223.81 - Step 6: Final answer
x = 194,864.53
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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.