Finding the Fourth Proportional to 245,412.70, 368,119.05 and 133,438.30
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Solution
The fourth proportional to 245,412.70, 368,119.05 and 133,438.30 is: 200,157.45
Step by Step Solution
- Step 1: Write the proportion equation
245,412.70 : 368,119.05 = 133,438.30 : x - Step 2: Convert to fraction form
245,412.70/368,119.05 = 133,438.30/x - Step 3: Cross multiply
245,412.70x = 368,119.05 × 133,438.30 - Step 4: Simplify right side
245,412.70x = 49,121,180,229.62 - Step 5: Solve for x
x = 49,121,180,229.62/245,412.70 - Step 6: Final answer
x = 200,157.45
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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.