Finding the Fourth Proportional to 371,378.25, 512,508.20 and 201,612.38
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Solution
The fourth proportional to 371,378.25, 512,508.20 and 201,612.38 is: 278,228.45
Step by Step Solution
- Step 1: Write the proportion equation
371,378.25 : 512,508.20 = 201,612.38 : x - Step 2: Convert to fraction form
371,378.25/512,508.20 = 201,612.38/x - Step 3: Cross multiply
371,378.25x = 512,508.20 × 201,612.38 - Step 4: Simplify right side
371,378.25x = 103,327,994,400.91 - Step 5: Solve for x
x = 103,327,994,400.91/371,378.25 - Step 6: Final answer
x = 278,228.45
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1.5x scale
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.