Finding the Fourth Proportional to 380,443.97, 570,875.99 and 212,059.08
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Solution
The fourth proportional to 380,443.97, 570,875.99 and 212,059.08 is: 318,205.69
Step by Step Solution
- Step 1: Write the proportion equation
380,443.97 : 570,875.99 = 212,059.08 : x - Step 2: Convert to fraction form
380,443.97/570,875.99 = 212,059.08/x - Step 3: Cross multiply
380,443.97x = 570,875.99 × 212,059.08 - Step 4: Simplify right side
380,443.97x = 121,059,436,173.19 - Step 5: Solve for x
x = 121,059,436,173.19/380,443.97 - Step 6: Final answer
x = 318,205.69
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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.