Finding the Fourth Proportional to 272,874.44, 409,291.68 and 85,939.40
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Solution
The fourth proportional to 272,874.44, 409,291.68 and 85,939.40 is: 128,902.81
Step by Step Solution
- Step 1: Write the proportion equation
272,874.44 : 409,291.68 = 85,939.40 : x - Step 2: Convert to fraction form
272,874.44/409,291.68 = 85,939.40/x - Step 3: Cross multiply
272,874.44x = 409,291.68 × 85,939.40 - Step 4: Simplify right side
272,874.44x = 35,174,281,404.19 - Step 5: Solve for x
x = 35,174,281,404.19/272,874.44 - Step 6: Final answer
x = 128,902.81
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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.