Finding the Fourth Proportional to 380,375.43, 570,428.05 and 140,437.99
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Solution
The fourth proportional to 380,375.43, 570,428.05 and 140,437.99 is: 210,607.11
Step by Step Solution
- Step 1: Write the proportion equation
380,375.43 : 570,428.05 = 140,437.99 : x - Step 2: Convert to fraction form
380,375.43/570,428.05 = 140,437.99/x - Step 3: Cross multiply
380,375.43x = 570,428.05 × 140,437.99 - Step 4: Simplify right side
380,375.43x = 80,109,768,781.62 - Step 5: Solve for x
x = 80,109,768,781.62/380,375.43 - Step 6: Final answer
x = 210,607.11
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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.