Finding the Fourth Proportional to 371,984.40, 513,313.20 and 202,214.88
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Solution
The fourth proportional to 371,984.40, 513,313.20 and 202,214.88 is: 279,042.80
Step by Step Solution
- Step 1: Write the proportion equation
371,984.40 : 513,313.20 = 202,214.88 : x - Step 2: Convert to fraction form
371,984.40/513,313.20 = 202,214.88/x - Step 3: Cross multiply
371,984.40x = 513,313.20 × 202,214.88 - Step 4: Simplify right side
371,984.40x = 103,799,567,140.42 - Step 5: Solve for x
x = 103,799,567,140.42/371,984.40 - Step 6: Final answer
x = 279,042.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.