Finding the Fourth Proportional to 290,915.28, 436,419.36 and 101,430.14
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Solution
The fourth proportional to 290,915.28, 436,419.36 and 101,430.14 is: 152,161.39
Step by Step Solution
- Step 1: Write the proportion equation
290,915.28 : 436,419.36 = 101,430.14 : x - Step 2: Convert to fraction form
290,915.28/436,419.36 = 101,430.14/x - Step 3: Cross multiply
290,915.28x = 436,419.36 × 101,430.14 - Step 4: Simplify right side
290,915.28x = 44,266,074,601.41 - Step 5: Solve for x
x = 44,266,074,601.41/290,915.28 - Step 6: Final answer
x = 152,161.39
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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.