Finding the Fourth Proportional to 371,404.69, 512,538.45 and 201,638.81
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Solution
The fourth proportional to 371,404.69, 512,538.45 and 201,638.81 is: 278,261.55
Step by Step Solution
- Step 1: Write the proportion equation
371,404.69 : 512,538.45 = 201,638.81 : x - Step 2: Convert to fraction form
371,404.69/512,538.45 = 201,638.81/x - Step 3: Cross multiply
371,404.69x = 512,538.45 × 201,638.81 - Step 4: Simplify right side
371,404.69x = 103,347,643,137.25 - Step 5: Solve for x
x = 103,347,643,137.25/371,404.69 - Step 6: Final answer
x = 278,261.55
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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.