Finding the Fourth Proportional to 145,157.30, 217,735.97 and 45,326.05
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Solution
The fourth proportional to 145,157.30, 217,735.97 and 45,326.05 is: 67,989.08
Step by Step Solution
- Step 1: Write the proportion equation
145,157.30 : 217,735.97 = 45,326.05 : x - Step 2: Convert to fraction form
145,157.30/217,735.97 = 45,326.05/x - Step 3: Cross multiply
145,157.30x = 217,735.97 × 45,326.05 - Step 4: Simplify right side
145,157.30x = 9,869,111,463.02 - Step 5: Solve for x
x = 9,869,111,463.02/145,157.30 - Step 6: Final answer
x = 67,989.08
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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.