Finding the Fourth Proportional to 250,709.79, 345,977.50 and 135,988.14
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Solution
The fourth proportional to 250,709.79, 345,977.50 and 135,988.14 is: 187,662.54
Step by Step Solution
- Step 1: Write the proportion equation
250,709.79 : 345,977.50 = 135,988.14 : x - Step 2: Convert to fraction form
250,709.79/345,977.50 = 135,988.14/x - Step 3: Cross multiply
250,709.79x = 345,977.50 × 135,988.14 - Step 4: Simplify right side
250,709.79x = 47,048,836,706.85 - Step 5: Solve for x
x = 47,048,836,706.85/250,709.79 - Step 6: Final answer
x = 187,662.54
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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.