Finding the Fourth Proportional to 371,530.86, 512,712.59 and 201,764.99
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Solution
The fourth proportional to 371,530.86, 512,712.59 and 201,764.99 is: 278,435.68
Step by Step Solution
- Step 1: Write the proportion equation
371,530.86 : 512,712.59 = 201,764.99 : x - Step 2: Convert to fraction form
371,530.86/512,712.59 = 201,764.99/x - Step 3: Cross multiply
371,530.86x = 512,712.59 × 201,764.99 - Step 4: Simplify right side
371,530.86x = 103,447,449,980.96 - Step 5: Solve for x
x = 103,447,449,980.96/371,530.86 - Step 6: Final answer
x = 278,435.68
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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.