Finding the Fourth Proportional to 272,883.21, 409,368.54 and 115,134.90
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Solution
The fourth proportional to 272,883.21, 409,368.54 and 115,134.90 is: 172,720.80
Step by Step Solution
- Step 1: Write the proportion equation
272,883.21 : 409,368.54 = 115,134.90 : x - Step 2: Convert to fraction form
272,883.21/409,368.54 = 115,134.90/x - Step 3: Cross multiply
272,883.21x = 409,368.54 × 115,134.90 - Step 4: Simplify right side
272,883.21x = 47,132,605,916.05 - Step 5: Solve for x
x = 47,132,605,916.05/272,883.21 - Step 6: Final answer
x = 172,720.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.