Finding the Fourth Proportional to 321,882.81, 444,177.58 and 178,642.95
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Solution
The fourth proportional to 321,882.81, 444,177.58 and 178,642.95 is: 246,515.78
Step by Step Solution
- Step 1: Write the proportion equation
321,882.81 : 444,177.58 = 178,642.95 : x - Step 2: Convert to fraction form
321,882.81/444,177.58 = 178,642.95/x - Step 3: Cross multiply
321,882.81x = 444,177.58 × 178,642.95 - Step 4: Simplify right side
321,882.81x = 79,349,193,215.06 - Step 5: Solve for x
x = 79,349,193,215.06/321,882.81 - Step 6: Final answer
x = 246,515.78
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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.