Finding the Fourth Proportional to 371,628.81, 512,836.92 and 201,862.53
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Solution
The fourth proportional to 371,628.81, 512,836.92 and 201,862.53 is: 278,564.40
Step by Step Solution
- Step 1: Write the proportion equation
371,628.81 : 512,836.92 = 201,862.53 : x - Step 2: Convert to fraction form
371,628.81/512,836.92 = 201,862.53/x - Step 3: Cross multiply
371,628.81x = 512,836.92 × 201,862.53 - Step 4: Simplify right side
371,628.81x = 103,522,558,148.61 - Step 5: Solve for x
x = 103,522,558,148.61/371,628.81 - Step 6: Final answer
x = 278,564.40
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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.