Finding the Fourth Proportional to 371,756.20, 513,004.44 and 201,989.92
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Solution
The fourth proportional to 371,756.20, 513,004.44 and 201,989.92 is: 278,735.70
Step by Step Solution
- Step 1: Write the proportion equation
371,756.20 : 513,004.44 = 201,989.92 : x - Step 2: Convert to fraction form
371,756.20/513,004.44 = 201,989.92/x - Step 3: Cross multiply
371,756.20x = 513,004.44 × 201,989.92 - Step 4: Simplify right side
371,756.20x = 103,621,725,795.25 - Step 5: Solve for x
x = 103,621,725,795.25/371,756.20 - Step 6: Final answer
x = 278,735.70
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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.