Finding the Fourth Proportional to 371,698.47, 512,984.95 and 208,370.68
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Solution
The fourth proportional to 371,698.47, 512,984.95 and 208,370.68 is: 287,574.55
Step by Step Solution
- Step 1: Write the proportion equation
371,698.47 : 512,984.95 = 208,370.68 : x - Step 2: Convert to fraction form
371,698.47/512,984.95 = 208,370.68/x - Step 3: Cross multiply
371,698.47x = 512,984.95 × 208,370.68 - Step 4: Simplify right side
371,698.47x = 106,891,021,057.88 - Step 5: Solve for x
x = 106,891,021,057.88/371,698.47 - Step 6: Final answer
x = 287,574.55
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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.