Finding the Fourth Proportional to 316,775.91, 436,800.36 and 201,872.43
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Solution
The fourth proportional to 316,775.91, 436,800.36 and 201,872.43 is: 278,360.66
Step by Step Solution
- Step 1: Write the proportion equation
316,775.91 : 436,800.36 = 201,872.43 : x - Step 2: Convert to fraction form
316,775.91/436,800.36 = 201,872.43/x - Step 3: Cross multiply
316,775.91x = 436,800.36 × 201,872.43 - Step 4: Simplify right side
316,775.91x = 88,177,950,098.07 - Step 5: Solve for x
x = 88,177,950,098.07/316,775.91 - Step 6: Final answer
x = 278,360.66
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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.