Finding the Fourth Proportional to 370,220.68, 555,331.09 and 133,563.28
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Solution
The fourth proportional to 370,220.68, 555,331.09 and 133,563.28 is: 200,344.95
Step by Step Solution
- Step 1: Write the proportion equation
370,220.68 : 555,331.09 = 133,563.28 : x - Step 2: Convert to fraction form
370,220.68/555,331.09 = 133,563.28/x - Step 3: Cross multiply
370,220.68x = 555,331.09 × 133,563.28 - Step 4: Simplify right side
370,220.68x = 74,171,841,435.82 - Step 5: Solve for x
x = 74,171,841,435.82/370,220.68 - Step 6: Final answer
x = 200,344.95
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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.