Finding the Fourth Proportional to 199,415.20, 299,122.80 and 116,471.20
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Solution
The fourth proportional to 199,415.20, 299,122.80 and 116,471.20 is: 174,706.80
Step by Step Solution
- Step 1: Write the proportion equation
199,415.20 : 299,122.80 = 116,471.20 : x - Step 2: Convert to fraction form
199,415.20/299,122.80 = 116,471.20/x - Step 3: Cross multiply
199,415.20x = 299,122.80 × 116,471.20 - Step 4: Simplify right side
199,415.20x = 34,839,191,463.36 - Step 5: Solve for x
x = 34,839,191,463.36/199,415.20 - Step 6: Final answer
x = 174,706.80
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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.