Finding the Fourth Proportional to 392,142.75, 541,157.48 and 213,294.75
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Solution
The fourth proportional to 392,142.75, 541,157.48 and 213,294.75 is: 294,347.02
Step by Step Solution
- Step 1: Write the proportion equation
392,142.75 : 541,157.48 = 213,294.75 : x - Step 2: Convert to fraction form
392,142.75/541,157.48 = 213,294.75/x - Step 3: Cross multiply
392,142.75x = 541,157.48 × 213,294.75 - Step 4: Simplify right side
392,142.75x = 115,426,048,340.76 - Step 5: Solve for x
x = 115,426,048,340.76/392,142.75 - Step 6: Final answer
x = 294,347.02
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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.